Astronomy

Introduction to Astronomy: Crash Course Astronomy #1

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Duration: 12:12
Updated: 15 Jan 2015
views: 56938

Welcome to the first episode of Crash Course Astronomy. Your host for this intergalactic adventure is the Bad Astronomer himself, Phil Plait. We begin with answering a question: "What is astronomy?" -- Table of Contents: What is Astronomy? 3:00 Who Studies Astronomy? 3:50 Origins & Developments 6:52 -- PBS Digital Studios: http://youtube.com/pbsdigitalstudios Follow Phil on Twitter: https://twitter.com/badastronomer Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Subbable: http://subbable.com/crashcourse -- Photos: http://commons.wikimedia.org/wiki/File:Earth_cutaway.png http://en.wikipedia.org/wiki/Earth%27s_magnetic_field#mediaviewer/File:Geodynamo_Between_Reversals.gif http://en.wikipedia.org/wiki/Geomagnetic_storm#mediaviewer/File:Magnetosphere_rendition.jpg http://en.wikipedia.org/wiki/Saturn#mediaviewer/File:Saturn_PIA06077.jpg http://en.wikipedia.org/wiki/243_Ida#mediaviewer/File:243_Ida_large.jpg http://commons.wikimedia.org/wiki/File:Comet_Hale_Bopp_NASA.jpg http://solarviews.com/raw/comet/kuiper3.jpg http://solarviews.com/cap/comet/kuiper3.htm http://en.wikipedia.org/wiki/List_of_nearest_bright_stars#mediaviewer/File:3_Solar_Interstellar_Neighborhood_(ELitU).png http://www.slate.com/blogs/bad_astronomy/2013/06/28/planetary_nebula_sh2_68_the_flaming_skull_nebula.html http://www.slate.com/blogs/bad_astronomy/2013/06/06/milky_way_galaxy_two_new_discoveries_about_its_spiral_arms.html http://en.wikipedia.org/wiki/Black_hole#mediaviewer/File:PIA16695-BlackHole-Corona-20130227.jpg http://commons.wikimedia.org/wiki/File:Messier_69_HST.jpg http://www.slate.com/blogs/bad_astronomy/2013/06/25/nearby_galaxies_swift_uv_pictures_of_two_galactic_neighbors.html http://upload.wikimedia.org/wikipedia/commons/0/0f/Earth%27s_Location_in_the_Universe_SMALLER_%28JPEG%29.jpg http://www.slate.com/blogs/bad_astronomy/2013/03/21/age_of_the_universe_planck_results_show_universe_is_13_82_billion_years.html http://www.esa.int/spaceinimages/Images/2007/02/True-colour_image_of_Mars_seen_by_OSIRIS http://en.wikipedia.org/wiki/Andromeda_Galaxy#mediaviewer/File:WISE-_Andromeda.jpg http://en.wikipedia.org/wiki/Triangulum_Galaxy#mediaviewer/File:VST_snaps_a_very_detailed_view_of_the_Triangulum_Galaxy.jpg http://en.wikipedia.org/wiki/Hubble_Space_Telescope#mediaviewer/File:HST-SM4.jpeg http://www.slate.com/blogs/bad_astronomy/2013/12/21/winter_solstice_2013_the_shortest_day_of_the_year.html http://www.slate.com/blogs/bad_astronomy/2012/12/28/full_moon_today_is_the_13th_full_moon_of_2012.html http://en.wikipedia.org/wiki/Nicolaus_Copernicus#mediaviewer/File:Nikolaus_Kopernikus.jpg http://en.wikipedia.org/wiki/Tycho_Brahe#mediaviewer/File:Tycho_Brahe.JPG http://en.wikipedia.org/wiki/Johannes_Kepler#mediaviewer/File:Johannes_Kepler_1610.jpg http://en.wikipedia.org/wiki/Isaac_Newton#mediaviewer/File:GodfreyKneller-IsaacNewton-1689.jpg http://en.wikipedia.org/wiki/Galileo_Galilei#mediaviewer/File:Justus_Sustermans_-_Portrait_of_Galileo_Galilei,_1636.jpg http://www.slate.com/blogs/bad_astronomy/2012/09/25/revealing_the_universe_the_hubble_extreme_deep_field.html

wn.com/Introduction To Astronomy Crash Course Astronomy 1

Dark Energy, Cosmology part 2: Crash Course Astronomy #43

Order: Reorder
Duration: 11:23
Updated: 17 Dec 2015
views: 12490

The majority of the universe is made up of a currently mysterious entity that pervades space: dark energy. We don’t know exactly what it is, but we do know that dark energy accelerates the expansion of space. We think this means the Universe will expand forever, even as our view of it shrinks while space expands faster all the time. Crash Course Astronomy Poster: http://store.dftba.com/products/crashcourse-astronomy-poster -- GEOMETRY OF THE UNIVERSE RESOURCES Geometry: http://abyss.uoregon.edu/~js/cosmo/lectures/lec15.html http://starchild.gsfc.nasa.gov/docs/StarChild/questions/question35.html Expanding faster than light: http://curious.astro.cornell.edu/legal-information/104-the-universe/cosmology-and-the-big-bang/expansion-of-the-universe/616-is-the-universe-expanding-faster-than-the-speed-of-light-intermediate General expansion: https://en.wikipedia.org/wiki/Metric_expansion_of_space -- Table of Contents Majority of the Universe is Made of Dark Energy 4:35 Dark Energy Accelerates the Expansion of Space 3:42 We Think The Universe Will Expand Forever 5:20 -- PBS Digital Studios: http://youtube.com/pbsdigitalstudios Follow Phil on Twitter: https://twitter.com/badastronomer Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Patreon: http://www.patreon.com/crashcourse -- PHOTOS/VIDEOS The Big Bang http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=10128 [credit: NASA] Collision Scenario for Milky Way and Andromeda Galaxy Encounter http://www.nasa.gov/images/content/654284main_i1220bw.jpg [credit: NASA; ESA; A. Feild and R. van der Marel, STScI] Artist's impression of vampire star http://www.spacetelescope.org/videos/astro_bn/ [credit: ESO/M. Kornmesser] Host Galaxies of Distant Supernovae http://www.nasa.gov/sites/default/files/images/593872main_hs-2006-52-a-print.jpg [credit: NASA, ESA, and A. Riess (STScl)] Dark Energy Expands the Universe http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=10135 [credit: NASA] Expanding Universe http://www.spacetelescope.org/videos/hst15_expanding_universe/ [credit: ESA/Hubble (M. Kornmesser & L. L. Christensen)] Hubble Ultra Deep Field 2014 http://hubblesite.org/newscenter/archive/releases/2014/27/image/a/ [credit: NASA, ESA, H. Teplitz and M. Rafelski (IPAC/Caltech), A. Koekemoer (STScI), R. Windhorst (Arizona State University), and Z. Levay (STScI)]

wn.com/Dark Energy, Cosmology Part 2 Crash Course Astronomy 43

Metallica - Astronomy

Order: Reorder
Duration: 6:39
Updated: 16 Jul 2007
views: 3721576

Song: Metallica - Astronomy (Original by Blue Öyster Cult) Album: Garage Inc (1998) A great song proformed by Metallica. Never been played live before, but should be. As Requested, here are the Lyrics... Clock strikes twelve and moondrops burst Out at you from their hiding place Like acid and oil on a madman's face His reason tends to fly away Like lesser birds on the four winds Like silver scrapes in May And now the sand's become a crust Most of you have gone away Come Susie dear, let's take a walk Just out there upon the beach I know you'll soon be married And you'll want to know where winds come from Well it's never said at all On the map that Carrie reads Behind the clock back there you know At the Four Winds Bar Hey! Hey! Hey! Hey! Four winds at the Four Winds Bar Two doors locked and windows barred One door to let to take you in The other one just mirrors it Hey! Hey! Hey! Hey! Hellish glare and inference The other one's a duplicate The Queenly flux, eternal light Or the light that never warms Yes the light that never, never warms Or the light that never Never warms Never warms Never warms The clock strikes twelve and moondrops burst Out at you from their hiding place Miss Carrie nurse and Susie dear Would find themselves at Four Winds Bar It's the nexus of the crisis And the origin of storms Just the place to hopelessly Encounter time and then came me Hey! Hey! Hey! Hey! Call me Desdinova Eternal light These gravely digs of mine Will surely prove a sight And don't forget my dog Fixed and consequent Astronomy...a star

wn.com/Metallica Astronomy

ASTRONOMY 101: Exploring the Inner-Solar System (1080p)

Order: Reorder
Duration: 58:31
Updated: 03 Sep 2014
views: 11546
author: DOCUMENTARY TUBE

Astronomy 101 Playlist: https://www.youtube.com/watch?v=2J4zI2-A_yg&list;=PLCIsViWU6sLl49ehmflMApV5TqDX-Eilt.

wn.com/Astronomy 101 Exploring The Inner Solar System (1080P)

Galaxies, part 1: Crash Course Astronomy #38

Order: Reorder
Duration: 12:06
Updated: 29 Oct 2015
views: 20280

The Milky Way is our neighborhood in the universe. It’s a galaxy and there are many others out there. Galaxies contain gas, dust, and billions of stars or more. They come in four main shapes: elliptical, spiral, peculiar, and irregular. Galaxies can collide, and grow in size by eating each other. Crash Course Astronomy Poster: http://store.dftba.com/products/crashcourse-astronomy-poster -- Table of Contents Milky Way is a Galaxy (One of Many) 2:04 Galaxies Have Four Main Shapes 3:18 Galaxies Can Collide 6:05 -- PBS Digital Studios: http://youtube.com/pbsdigitalstudios Follow Phil on Twitter: https://twitter.com/badastronomer Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Patreon: http://www.patreon.com/crashcourse -- PHOTOS/VIDEOS NGC 5363 http://aftar.uaa.alaska.edu/gallery/details.cfm?img=316&type;=# [credit: T.A. Rector (University of Alaska Anchorage) and H. Schweiker (WIYN and NOAO/AURA/NSF)] Panorama of Spiral Galaxy, M31 http://www.noao.edu/image_gallery/html/im1259.html [credit: Local Group Survey Team and T.A. Rector (University of Alaska Anchorage)] Animation of a variable star http://www.spacetelescope.org/videos/heic1323j/ [credit: NASA, ESA, M. Kornmesser] Hubble M31 PHAT Mosaic http://hubblesite.org/newscenter/archive/releases/2015/02/image/a/ [credit: NASA, ESA, J. Dalcanton, B.F. Williams, and L.C. Johnson (University of Washington), the PHAT team, and R. Gendler] Elliptical - Death of giant galaxies spreads from the core https://www.spacetelescope.org/news/heic1508/ [credit: ESA/Hubble & NASA] Spiral - HUBBLE VIEW OF BARRED SPIRAL GALAXY MESSIER 83 http://sci.esa.int/hubble/53590-hubble-view-of-barred-spiral-galaxy-messier-83/ [credit: NASA, ESA, and the Hubble Heritage Team (STScI/AURA). Acknowledgement: William Blair (Johns Hopkins University)] Peculiar - Colliding galaxies make love, not war https://www.spacetelescope.org/news/heic0615/ [credit: NASA, ESA, and the Hubble Heritage Team STScI/AURA)-ESA/Hubble Collaboration] Irregular - Little Galaxy Explored http://www.nasa.gov/mission_pages/spitzer/multimedia/asmccaption_prt.htm [credit: NASA/JPL-Caltech/STScI] Hubble Image of Messier 101 http://hubblesite.org/newscenter/archive/releases/2009/07/image/h/ [credit: NASA, ESA, K. Kuntz (JHU), F. Bresolin (University of Hawaii), J. Trauger (Jet Propulsion Lab), J. Mould (NOAO), Y.-H. Chu (University of Illinois, Urbana), and STScI] A poster-size image of the beautiful barred spiral galaxy NGC 1300 http://www.spacetelescope.org/images/opo0501a/ [credit: NASA, ESA, and The Hubble Heritage Team STScI/AURA)] NGC 3344 http://skycenter.arizona.edu/gallery/Galaxies/NGC3344 [credit: Adam Block/Mount Lemmon SkyCenter/University of Arizona] Flocculent spiral NGC 2841 http://www.spacetelescope.org/news/heic1104/ [credit: NASA, ESA and the Hubble Heritage Team] Barred Spiral Galaxy NGC1365 https://www.noao.edu/image_gallery/html/im1034.html [credit: SSRO/PROMPT and NOAO/AURA/NSF] Magnificent Details in a Dusty Spiral Galaxy http://hubblesite.org/newscenter/archive/releases/1999/25/image/a/ [credit: The Hubble Heritage Team] Panning across Messier 77 http://www.spacetelescope.org/videos/heic1305b/ [credit: NASA, ESA, Digitized Sky Survey 2. Acknowledgement: A. van der Hoeven] Hubble Mosaic of the Sombrero Galaxy http://www.spacetelescope.org/images/opo0328a/ [credit: NASA/ESA and The Hubble Heritage Team] Spiral Galaxy NGC 4565 http://www.eso.org/public/images/eso0525a/ [credit: ESO] M87 (with Jet) http://skycenter.arizona.edu/gallery/Galaxies/M87%28withJet%29 [credit: Adam Block/Mount Lemmon SkyCenter/University of Arizona] M59, NGC4621 https://www.noao.edu/image_gallery/html/im0579.html [credit: NOAO/AURA/NSF] Fulldome simulation of colliding galaxies http://www.spacetelescope.org/videos/gal_coll_dome_3800/ [credit: NASA/STScI] Antennae Galaxies http://www.spacetelescope.org/images/potw1345a/ [credit: ESA/Hubble & NASA] Terzan 5 Artist’s Concept http://www.sdss3.org/press/images/20111130.fourtails.streams-3.jpg [credit: Amanda Smith, Institute of Astronomy, University of Cambridge] Interacting Galaxy Pair Arp 87 http://hubblesite.org/newscenter/archive/releases/2007/36/image/a/ [credit: NASA, ESA, and the Hubble Heritage Team] Doing cartwheels to celebrate the end of an era http://www.spacetelescope.org/images/potw1036a/ [credit: ESA/Hubble & NASA] Hoag's Object http://hubblesite.org/newscenter/archive/releases/2002/21/image/a/ [credit: NASA and The Hubble Heritage Team] Paranal Nights https://www.eso.org/public/images/potw1401a/ [credit: Y. Beletsky (LCO)/ESO] Tarantula Nebula http://www.eso.org/public/images/eso1023a/ [credit: TRAPPIST/E. Jehin/ESO] Hubble Ultra Deep Field 2014 http://hubblesite.org/newscenter/archive/releases/2014/27/image/a/ [credit: NASA, ESA]

wn.com/Galaxies, Part 1 Crash Course Astronomy 38

Galaxies, part 2: Crash Course Astronomy #39

Order: Reorder
Duration: 15:35
Updated: 05 Nov 2015
views: 10897

Active galaxies pour out lots of energy, due to their central supermassive black holes gobbling down matter. Galaxies tend not to be loners, but instead exist in smaller groups and larger clusters. Our Milky Way is part of the Local Group, and will one day collide with the Andromeda galaxy. Clusters of galaxies also clump together to form superclusters, the largest structures in the Universe. In total, there are hundreds of billions of galaxies in the Universe. Crash Course Astronomy Poster: http://store.dftba.com/products/crashcourse-astronomy-poster -- Table of Contents Black Holes at the Center of Galaxies 2:26 Galaxies Are a Part of Small/Large Clusters 9:47 The Milky Way is Part of the Local Group 6:45 Galaxy Clusters Clump Together to Create Superclusters 11:03 Hundreds of Billions of Galaxies 12:39 -- PBS Digital Studios: http://youtube.com/pbsdigitalstudios Follow Phil on Twitter: https://twitter.com/badastronomer Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Patreon: http://www.patreon.com/crashcourse -- PHOTOS/VIDEOS Galactic Wreckage in Stephan's Quintet http://hubblesite.org/newscenter/archive/releases/2009/25/image/x/ [credit: NASA, ESA, and the Hubble SM4 ERO Team] Best image of bright quasar 3C 273 http://www.spacetelescope.org/images/potw1346a/ [credit: ESA/Hubble & NASA] Nearby Quasar 3C 273 http://hubblesite.org/newscenter/archive/releases/2003/03/image/a/ [credit: NASA, M. Clampin (STScI), H. Ford (JHU), G. Illingworth (UCO/Lick Observatory), J. Krist (STScI), D. Ardila (JHU), D. Golimowski (JHU), the ACS Science Team, J. Bahcall (IAS) and ESA] Gamma Rays http://chandra.harvard.edu/photo/2014/archives/archives_herca.jpg [credit: X-ray: NASA/CXC/SAO, Optical: NASA/STScI, Radio: NSF/NRAO/VLA] Black hole (artist's impression) http://www.spacetelescope.org/videos/hst15_black_hole2/ [credit: ESA/Hubble (M. Kornmesser & L. L. Christensen)] Matter accreting around a supermassive black hole (artist's impression) http://www.spacetelescope.org/videos/hubblecast43c/ [credit: ESA/Hubble (M. Kornmesser)] Artist’s animation of galaxy with jets from a supermassive black hole http://www.spacetelescope.org/videos/heic1511a/ [credit: ESA/Hubble, L. Calçada (ESO)] NASA's Swift Finds 'Missing' Active Galaxies https://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=10698 [credit: NASA/Goddard Space Flight Center] Sagittarius A*: NASA's Chandra Detects Record-Breaking Outburst from Milky Way's Black Hole http://chandra.harvard.edu/photo/2015/sgra/ [credit: NASA/CXC/Amherst College/D.Haggard et al] NASA Hubble Sees Sparring Antennae Galaxies https://www.nasa.gov/content/goddard/nasa-hubble-sees-sparring-antennae-galaxies [credit: Hubble/European Space Agency] A New Dawn http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=11011 [credit: NASA, ESA, G. Besla (Columbia University) and R. van der Marel (STScI)] Galaxy Sky http://svs.gsfc.nasa.gov/vis/a010000/a011000/a011011/hs-2012-20-h-full_1920x1080.jpg [credit: NASA, ESA, Z. Levay and R. van der Marel (STScI) T. Hallas, and A. Mellinger] Virgo Cluster http://deepskycolors.com/astro/2015/06/RBA_VirgoCluster3p_2048.jpg [credit: Rogelio Bernal Andreo] Cosmic Clumps http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=11445 [credit: NASA's Scientific Visualization Studio] Laniakea: Our Home Supercluster of Galaxies http://apod.nasa.gov/apod/ap140910.html [credit: R. Brent Tully (U. Hawaii) et al., SDvision, DP, CEA/Saclay] Webb Science Simulations http://svs.gsfc.nasa.gov/vis/a010000/a010600/a010663/index.html [credit: NASA/Goddard Space Flight Center and the Advanced Visualization Laboratoy at the National Center for Supercomputing Applications] Hubble Deep Field https://upload.wikimedia.org/wikipedia/commons/5/5f/HubbleDeepField.800px.jpg [credit: R. Williams (STScI), the Hubble Deep Field Team and NASA] Hubble Ultra Deep Field 2014 http://hubblesite.org/newscenter/archive/releases/2014/27/image/a/ [credit: NASA, ESA, H. Teplitz and M. Rafelski (IPAC/Caltech), A. Koekemoer (STScI), R. Windhorst (Arizona State University), and Z. Levay (STScI)]

wn.com/Galaxies, Part 2 Crash Course Astronomy 39

Black Holes: Crash Course Astronomy #33

Order: Reorder
Duration: 12:26
Updated: 25 Sep 2015
views: 13950

We’ve covered a lot of incredible stuff, but this week we’re talking about the weirdest objects in space: BLACK HOLES. Stellar mass black holes form when a very massive star dies, and its core collapses. The core has to be more than about 2.8 times the Sun’s mass to form a black hole. Black holes come in different sizes, but for all of them, the escape velocity is greater than the speed of light, so nothing can escape, not matter or light. They don’t wander the Universe gobbling everything down around them; their gravity is only really intense very close to them. Tides near a stellar mass black hole will spaghettify you, and time slows down when you get near a black hole — not that this helps much if you’re falling in. Crash Course Astronomy Poster: http://store.dftba.com/products/crashcourse-astronomy-poster -- Table of Contents How Stellar Mass Black Holes Are Formed 1:03 The Core 1:43 Nothing Can Escape Once It’s Inside 2:29 Gravity Intensifies The Closer You Get 3:33 Spaghettification 6:01 Time Will Slow Down Near A Black Hole 8:01 -- PBS Digital Studios: http://youtube.com/pbsdigitalstudios Follow Phil on Twitter: https://twitter.com/badastronomer Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Patreon: http://www.patreon.com/crashcourse -- PHOTOS/VIDEOS White Dwarf Pulses Like a Pulsar http://www.nasa.gov/centers/goddard/news/topstory/2007/whitedwarf_pulsar.html [credit: NASA, Casey Reed] Swift Reveals New Phenomenon in a Neutron Star http://www.nasa.gov/mission_pages/swift/bursts/new-phenom.html#.Vc4isflVhBd [credit: NASA's Goddard Space Flight Center] Black Holes - Monsters in Space https://en.wikipedia.org/wiki/File:Black_Holes_-_Monsters_in_Space.jpg [credit: NASA/JPL-Caltech, Wikimedia Commons] What if the Sun became a black hole? (artist's impression) http://www.spacetelescope.org/videos/hubblecast43g/ [credit: ESA/Hubble (M. Kornmesser)] Black Hole Animation http://chandra.harvard.edu/photo/2003/0203long/animations.html [credit: NASA/SAO/CXC/D.Berry] Star Destroyer http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=11065 [credit: Space Telescope Science Institute (STScI) and NASA's Goddard Space Flight Center] Black hole deforms space http://www.spacetelescope.org/videos/hst15_blackhole_grid/ [credit: ESA/Hubble (M. Kornmesser & L. L. Christensen)] Black hole close-up (artist's impression) http://www.spacetelescope.org/videos/heic0211c/ [credit: European Space Agency, NASA and Felix Mirabel (the French Atomic Energy Commission & the Institute for Astronomy and Space Physics/Conicet of Argentina)]

wn.com/Black Holes Crash Course Astronomy 33

Dark Matter: Crash Course Astronomy #41

Order: Reorder
Duration: 12:00
Updated: 03 Dec 2015
views: 16425

Today on Crash Course Astronomy, Phil dives into some very dark matters. The stuff we can actually observe in the universe isn’t all there is. Galaxies and other large structures in the universe are created and shifted by a force we detect mostly indirectly, by observing its impact: DARK MATTER. Crash Course Astronomy Poster: http://store.dftba.com/products/crashcourse-astronomy-poster -- Table of Contents Normal and Dark Matter 0:55 Dark Matter Only Interacts With Normal Matter Through Gravity 4:27 Dark Matter Bends Light 5:08 -- PBS Digital Studios: http://youtube.com/pbsdigitalstudios Follow Phil on Twitter: https://twitter.com/badastronomer Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Patreon: http://www.patreon.com/crashcourse -- PHOTOS/VIDEOS Virtual tour in our Solar System (Artist's impression) http://www.spacetelescope.org/videos/hubblecast27b/ [credit: ESA/Hubble (M. Kornmesser & L. L. Christensen)] Hubblecast 11: A grand design in a galactic festoon http://www.spacetelescope.org/videos/heic0719a/ [credit: ESA/Hubble (M. Kornmesser & L. L. Christensen)] Hubble's High-Definition Panoramic View of the Andromeda Galaxy http://hubblesite.org/newscenter/archive/releases/2015/02/image/a/ [credit: NASA, ESA, J. Dalcanton, B.F. Williams, and L.C. Johnson (University of Washington), the PHAT team, and R. Gendler] Panning and zooming on Abell 1689 http://www.spacetelescope.org/videos/heic0805b/ [credit: ESA/Hubble (M. Kornmesser & L. L. Christensen)] All-sky image of molecular gas and three molecular cloud complexes seen by Planck http://www.nasa.gov/mission_pages/planck/multimedia/pia15227.html#.ViZwA36rSUl [credit: ESA/Planck Collaboration] How to Become a Star http://www.eso.org/public/images/eso0102a/ [credit: ESO] Neutron star illustrated https://commons.wikimedia.org/wiki/File:Neutron_star_illustrated.jpg [credit: NASA, Casey Reed - Penn State University] Alone in Space - Astronomers Find New Kind of Planet http://www.nasa.gov/topics/universe/features/pia14093.html [credit: NASA/JPL-Caltech] Black hole deforms space http://www.spacetelescope.org/videos/hst15_blackhole_grid/ [credit: ESA/Hubble (M. Kornmesser & L. L. Christensen)] Gravitational lensing in action http://www.spacetelescope.org/videos/heic1106a/ [credit: NASA, ESA & L. Calçada] Bullet Cluster http://apod.nasa.gov/apod/image/0608/bulletcluster_comp_f2048.jpg [credit: X-ray: NASA/CXC/CfA/ M.Markevitch et al.; Lensing Map: NASA/STScI; ESO WFI; Magellan/U.Arizona/ D.Clowe et al. Optical: NASA/STScI; Magellan/U.Arizona/D.Clowe et al.] Bullet Cluster, Optical http://chandra.harvard.edu/photo/2008/bullet/bullet_optical.jpg [credit: NASA/STScI; Magellan/U.Arizona/D.Clowe et al.] Bullet Cluster, X-ray http://chandra.harvard.edu/photo/2008/bullet/bullet_xray.jpg [credit: NASA/CXC/CfA/ M.Markevitch et al.] The Bullet Cluster http://www.esa.int/spaceinimages/Images/2007/07/The_Bullet_Cluster2 [credit: X-ray: NASA/CXC/CfA/M.Markevitch, Optical and lensing map: NASA/STScI, Magellan/U.Arizona/D.Clowe, Lensing map: ESO WFI] Pandora’s Cluster — Clash of the Titans http://www.nasa.gov/mission_pages/hubble/science/pandora-cluster.html [credit: NASA] Hubble Refines Distance to Pleiades Star Cluster http://hubblesite.org/newscenter/archive/releases/2004/20/image/a/ [credit: NASA, ESA and AURA/Caltech] Stephan’s Quintet http://apod.nasa.gov/apod/ap120225.html [credit: Hubble Legacy Archive, ESA, NASA] Virgo Cluster Galaxies http://apod.nasa.gov/apod/ap150804.html [credit: Rogelio Bernal Andreo] Illustration of the distribution dark matter in the Universe http://www.nasa.gov/mission_pages/hubble/science/hst_img_20080520.html [credit: NASA, ESA, and E. Hallman (University of Colorado, Boulder)]

wn.com/Dark Matter Crash Course Astronomy 41

The Big Bang: Crash Course Astronomy #42

Order: Reorder
Duration: 13:23
Updated: 10 Dec 2015
views: 11532

Thanks to observations of galaxy redshifts, we can tell that the universe is EXPANDING! Knowing that the universe is expanding and how quickly its expanding also allows us to run the clock backwards 14 billion years to the way the universe began - with a bang. Crash Course Astronomy Poster: http://store.dftba.com/products/crashcourse-astronomy-poster -- Table of Contents Distant Galaxies Show a Red Shift in Their Spectra 2:07 The Universe is Expanding 2:51 This Model is Called “The Big Bang” 5:12 The Universe is Almost 14 Billion Years Old 11:43 -- PBS Digital Studios: http://youtube.com/pbsdigitalstudios Follow Phil on Twitter: https://twitter.com/badastronomer Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Patreon: http://www.patreon.com/crashcourse -- PHOTOS/VIDEOS Hubble Goes to the eXtreme to Assemble Farthest-Ever View of the Universe http://www.nasa.gov/mission_pages/hubble/science/xdf.html [credit: NASA; ESA; G. Illingworth, D. Magee, and P. Oesch, University of California, Santa Cruz; R. Bouwens, Leiden University; and the HUDF09 Team] Out of this whirl: The Whirlpool Galaxy (M51) and companion galaxy http://www.spacetelescope.org/images/heic0506a/ [credit: NASA, ESA, S. Beckwith (STScI), and The Hubble Heritage Team STScI/AURA)] Red-Shifts in the Spectra of Extra-glactic Nebuale http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?1936ApJ....83...10H&data_type=PDF_HIGH&whole_paper=YES&type=PRINTER&filetype=.pdf [credit: American Astronomical Society, NASA Astrophysics Data System] Andromeda http://www.nasa.gov/images/content/386910main_M31_optical_wide.jpg [credit: Bill Schoening, Vanessa Harvey/REU program/NOAO/AURA/NSF] The Big Bang (video) http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=10128 [credit: NASA] The Sun https://www.nasa.gov/sites/default/files/706436main_20121114-304-193blend_m6-orig_full.jpg [credit: NASA/SDO] Alpha Centauri http://www.eso.org/public/images/eso1241e/ [credit: ESO/Digitized Sky Survey 2, Acknowledgement: Davide De Martin] Andromeda https://en.wikipedia.org/wiki/Andromeda_Galaxy#/media/File:Andromeda_galaxy_2.jpg [credit: NASA/JPL-Caltech] Friedmann Universes https://commons.wikimedia.org/wiki/File:Friedmann_universes.svg Friedmann Equation http://burro.astr.cwru.edu/Academics/Astr328/Notes/Expansion/friedmann.html Penzias and Wilson stand at the 15 meter Holmdel Horn Antenna that brought their most notable discovery. https://en.wikipedia.org/wiki/Arno_Allan_Penzias#/media/File:Horn_Antenna-in_Holmdel,_New_Jersey.jpeg [credit: NASA] Planck CMB http://www.esa.int/spaceinimages/Images/2013/03/Planck_CMB [credit: ESA and the Planck Collaboration] Galaxy Superclusters http://irfu.cea.fr/Projets/coast_documents/images_MareNostrum/SDvision-MN00097-hires-01-mymix-a0_075.jpg [credit: Marenostrum Numerical Cosmology Project]

wn.com/The Big Bang Crash Course Astronomy 42

Distances: Crash Course Astronomy #25

Order: Reorder
Duration: 11:21
Updated: 17 Jul 2015
views: 28652

How do astronomers make sense out of the vastness of space? How do they study things so far away? Today Phil talks about distances, going back to early astronomy. Ancient Greeks were able to find the size of the Earth, and from that the distance to and the sizes of the Moon and Sun. Once the Earth/Sun distance was found, parallax was used to find the distance to nearby stars, and that was bootstrapped using brightness to determine the distances to much farther stars. -- Table of Contents Ancient Greeks Finding the Size of the Earth 1:07 Earth/Sun Distance Began Our Use of Parallax 5:39 Brightness Relation to Distance 9:07 -- PBS Digital Studios: http://youtube.com/pbsdigitalstudios Follow Phil on Twitter: https://twitter.com/badastronomer Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Patreon: http://www.patreon.com/crashcourse -- PHOTOS/VIDEOS Lunar Ecplise http://www.slate.com/content/dam/slate/blogs/bad_astronomy/2014/04/15/lunareclipse_partial_apr142014_spica.jpg.CROP.original-original.jpg [credit: Phil Plait] Venus & Mercury [credit: Phil Plait] Venus Transit https://www.youtube.com/watch?v=34mXua1n_FQ [credit: NASA] Black Drop Venus Transit https://en.wikipedia.org/wiki/Black_drop_effect#mediaviewer/File:BlackDrop-Venus-Transit.jpg [credit: Wikimedia Commons, H. Raab, Johannes-Kepler-Observatory] New Horizons Approaching Pluto and Charon https://en.wikipedia.org/wiki/New_Horizons#/media/File:15-011a-NewHorizons-PlutoFlyby-ArtistConcept-14July2015-20150115.jpg [credit: NASA/JHU APL/SwRI/Steve Gribben] Radio Telescopes Diagram http://scitechdaily.com/images/Radio-Telescopes-Settle-Controversy-Over-Distance-to-Pleiades.jpg [credit: Alexandra Angelich, NRAO/AUI/NSF] 61 Cygni https://archive.stsci.edu/cgi-bin/dss_search?v=poss1_red&r;=21+06+54.60&d;=%2B38+44+44.9&e;=J2000&h;=30&w;=30&f;=gif&c;=none&fov;=NONE&v3;= [credit: Caltech / National Geographic Society / STScI] Proxima Centauri https://www.spacetelescope.org/images/potw1343a/ [credit: ESA/Hubble & NASA] Dying Star http://www.nasa.gov/images/content/64884main_image_feature_211_jwfull.jpg [credit: NASA, ESA, HEIC, and The Hubble Heritage Team (STScI/AURA)] Exploding Star http://www.nasa.gov/multimedia/imagegallery/image_feature_1604.html [credit: NASA, ESA, J. Hester, A. Loll (ASU)] Animation of a Variable Star http://www.spacetelescope.org/videos/heic1323j/ [credit: NASA, ESA, M. Kornmesser] Hubble's High-Definition Panoramic View of the Andromeda Galaxy http://hubblesite.org/newscenter/archive/releases/2015/02/image/a/ [credit: NASA, ESA, J. Dalcanton, B.F. Williams, and L.C. Johnson (University of Washington), the PHAT team, and R. Gendler]

wn.com/Distances Crash Course Astronomy 25

Gamma-Ray Bursts: Crash Course Astronomy #40

Order: Reorder
Duration: 14:05
Updated: 13 Nov 2015
views: 127882

Gamma-ray bursts are not only incredible to study, but their discovery has an epic story all its own. Today Phil takes you through some Cold War history and then dives into what we know. Bursts come in two rough varieties: Long and short. Long ones are from hypernovae, massive stars exploding, sending out twin beams of matter and energy. Short ones are from merging neutron stars. Both kinds are so energetic they are visible for billions of light years, and both are also the birth announcements of black holes. Crash Course Astronomy Poster: http://store.dftba.com/products/crashcourse-astronomy-poster -- Table of Contents Gamma-Ray Were Discovered During the Cold War 0:47 Bursts Come in Two Varieties: Long and Short 8:35 Long Bursts Are From Hypernovae, Massive Stars Exploding 6:46 Short Ones Are From Merging Neutron Stars 9:00 Both Are The Birthplace of Black holes 9:55 -- PBS Digital Studios: http://youtube.com/pbsdigitalstudios Follow Phil on Twitter: https://twitter.com/badastronomer Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Patreon: http://www.patreon.com/crashcourse -- PHOTOS/VIDEOS Nuclear Bomb Images via Wikimedia Commons: Operation Upshot Knothole https://en.wikipedia.org/wiki/File:Operation_Upshot-Knothole_-_Badger_001.jpg Ivy Mike https://en.wikipedia.org/wiki/File:IvyMike2.jpg Castle Bravo https://en.wikipedia.org/wiki/Castle_Bravo#/media/File:Castle_Bravo_Blast.jpg Upshot Knothole GRABLE https://en.wikipedia.org/wiki/File:Upshot-Knothole_GRABLE.jpg President Kennedy signs the Limited Nuclear Test Ban Treaty https://en.wikipedia.org/wiki/Partial_Nuclear_Test_Ban_Treaty#/media/File:President_Kennedy_signs_Nuclear_Test_Ban_Treaty,_07_October_1963.jpg [credit: Wikimedia Commons] Vela http://www.losangeles.af.mil/shared/media/photodb/photos/2013/06/130605-F-IN001-011.jpg [credit: USAF] The Crab Nebula https://www.nasa.gov/multimedia/imagegallery/image_feature_1604.html [credit: NASA, ESA, J. Hester, A. Loll (ASU)] Solar Flare http://www.nasa.gov/mission_pages/sunearth/news/News041612-M1.7flare.html [credit: NASA/SDO/AIA] Gamma Ray Burst http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=20139 [credit: NASA/Goddard Space Flight Center Conceptual Image Lab] Four ALMA antennas on the Chajnantor plain http://www.eso.org/public/images/alma-jfs-2010-10/ [credit: ESO/José Francisco Salgado (josefrancisco.org)] Gamma Ray Burst 970228 https://www.spacetelescope.org/images/opo9730b/ [credit: Andrew Fruchter (STScI), Elena Pian (ITSRE-CNR), and NASA/ESA] HST/STIS Image of the optical afterglow of w:GRB 970508 https://en.wikipedia.org/wiki/GRB_970508#/media/File:StisI.gif [credit: STScI/NASA] Black Holes: Monsters in Space http://www.nasa.gov/mission_pages/nustar/multimedia/pia16695.html [credit: NASA/JPL-Caltech] Naked-Eye Gamma-ray Burst Model for GRB 080319B http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=10369 [credit: NASA/Swift/Cruz deWilde] 2008 GRB http://www.nasa.gov/images/content/218810main_grb_20080320_HI.jpg [credit: NASA/Swift/Stefan Immler, et al.] GRB Data http://www.nasa.gov/images/content/134782main_GRB_data_compare_black_sm.jpg [credit: NASA] Imagine two massive stars born together as a binary star http://chandra.harvard.edu/photo/2005/j0806/wd_lg.mpg [credit: NASA/GSFC/D. Berry] Colliding Binary Neutron stars http://chandra.harvard.edu/resources/animations/neutronstars.html?page=4 [credit: NASA/D.Berry] Black Hole Devours a Neutron Star http://chandra.harvard.edu/resources/animations/neutronstars.html?page=5 [credit: NASA/D.Berry] Eta Carinae https://en.wikipedia.org/wiki/Eta_Carinae#/media/File:Eta_Carinae.jpg [credit: Jon Morse (University of Colorado) & NASA Hubble Space Telescope] WR 104: A Pinwheel Star System http://apod.nasa.gov/apod/ap140603.html [credit: P. Tuthill (U. Sydney) & J. Monnier (U. Michigan), Keck Obs., ARC, NSF] Swift HD Beauty Shot http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=10867 [credit: NASA/Goddard Space Flight Center] Swift's 500 Gamma-ray Bursts http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=10590 [credit: NASA/Goddard Space Flight Center]

wn.com/Gamma Ray Bursts Crash Course Astronomy 40

The Milky Way: Crash Course Astronomy #37

Order: Reorder
Duration: 11:14
Updated: 22 Oct 2015
views: 6920

Today we’re talking about our galactic neighborhood: The Milky Way. It’s a disk galaxy, a collection of dust, gas, and hundreds of billions of stars, with the Sun located about halfway out from the center. The disk has grand spiral patterns in it, formed by the traffic jams of stars and nebulae, where stars are born. The central region is shaped like a bar, and is mostly old, red stars. There’s also a halo surrounding us of old stars. Crash Course Astronomy Poster: http://store.dftba.com/products/crashcourse-astronomy-poster -- Table of Contents Milky Way Is A Disc 2:54 Grand Spiral Patterns 4:21 The Central Region Is Bar Shaped 7:48 Outer Halo Of Old Stars 9:09 -- PBS Digital Studios: http://youtube.com/pbsdigitalstudios Follow Phil on Twitter: https://twitter.com/badastronomer Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Patreon: http://www.patreon.com/crashcourse -- PHOTOS/VIDEOS Milky Way, Artist’s Drawing http://www.nasa.gov/mission_pages/spitzer/multimedia/20080603a.html [credit: NASA/JPL-Caltech] Joshua Tree http://deepskycolors.com/astro/2013/04/2013-04_JoshuaTree_MW.jpg [credit: Rogelio Bernal Andreo] Milky Way Center Region Mosaic http://sguisard.astrosurf.com/Pagim/GC.html [credit: ESO] New Hubble image of star cluster Messier 15 http://www.spacetelescope.org/images/heic1321a/ [credit: NASA, ESA] Artist’s impression of the Milky Way http://www.spacetelescope.org/videos/hubblecast70b/ [credit: ESA/Hubble and M. Kornmesser] M83 (Hubble Only and Hubble-Subaru-ESO Composite) http://www.robgendlerastropics.com/M83-New-HST.html [credit: Robert Gendler, 8.2 Meter Subaru Telescope (NAOJ), European Southern Observatories, Hubble Legacy Archive] Hubble's Largest Galaxy Portrait Offers a New High-Definition View http://hubblesite.org/newscenter/archive/releases/2006/10/image/a/ [credit: NASA, ESA, K. Kuntz (JHU), F. Bresolin (University of Hawaii), J. Trauger (Jet Propulsion Lab), J. Mould (NOAO), Y.-H. Chu (University of Illinois, Urbana), and STScI] NGC 3344 http://skycenter.arizona.edu/gallery/Galaxies/NGC3344 [credit: Adam Block/Mount Lemmon SkyCenter/University of Arizona] Annotated Milky Way http://www.jpl.nasa.gov/images/wise/20150603/spitzer20150603.jpg [credit: NASA/JPL-Caltech] Black hole with corona, X-ray source (artist's concept) https://en.wikipedia.org/wiki/Black_hole#/media/File:Black_Holes_-_Monsters_in_Space.jpg [credit: NASA/JPL-Caltech] A Galaxy and its Halo http://www.esa.int/spaceinimages/Images/2008/06/A_galaxy_and_its_halo [credit: ESA (image by C. Carreau)] How to Become a Star http://www.eso.org/public/images/eso0102a/ [credit: ESO]

wn.com/The Milky Way Crash Course Astronomy 37

The Next Big Questions in Astronomy - Professor Carolin Crawford

Order: Reorder
Duration: 59:48
Updated: 10 Apr 2015
views: 939

In her final Gresham Lecture, Professor Crawford talks about where the next big breakthrough will come from: http://www.gresham.ac.uk/lectures-and-events/the-next-big-questions For each exciting advance or discovery that takes place in Astronomy, other just as important questions either arise or remain unanswered. In my last Gresham lecture I shall review what the near future might bring – the exciting space missions, satellites and telescopes – and the fundamental scientific challenges they are designed to tackle. The transcript and downloadable versions of the lecture are available from the Gresham College website: http://www.gresham.ac.uk/lectures-and-events/the-next-big-questions Gresham College has been giving free public lectures since 1597. This tradition continues today with all of our five or so public lectures a week being made available for free download from our website. There are currently over 1,800 lectures free to access or download from the website. Website: http://www.gresham.ac.uk Twitter: http://twitter.com/GreshamCollege Facebook: https://www.facebook.com/greshamcollege

wn.com/The Next Big Questions In Astronomy Professor Carolin Crawford

Neutron Stars: Crash Course Astronomy #32

Order: Reorder
Duration: 12:57
Updated: 17 Sep 2015
views: 158079

In the aftermath of a 8 – 20 solar mass star’s demise we find a weird little object known as a neutron star. Neutrons stars are incredibly dense, spin rapidly, and have very strong magnetic fields. Some of them we see as pulsars, flashing in brightness as they spin. Neutrons stars with the strongest magnetic fields are called magnetars, and are capable of colossal bursts of energy that can be detected over vast distances. Crash Course Astronomy Poster: http://store.dftba.com/products/crashcourse-astronomy-poster -- Table of Contents A Star Can Collapse to Form a Neutron Star 0:59 Neutron Star Characteristics 2:24 Pulsars 5:56 Magnetars 8:15 -- PBS Digital Studios: http://youtube.com/pbsdigitalstudios Follow Phil on Twitter: https://twitter.com/badastronomer Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Patreon: http://www.patreon.com/crashcourse -- PHOTOS/VIDEOS Star Burst https://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=11447 [credit: NASA's Goddard Space Flight Center] X-ray Images of G292.0+1.8 http://chandra.harvard.edu/resources/animations/snr.html/?page=8 [credit: X-ray: NASA/CXC/Penn State/S.Park et al.; Optical: Pal.Obs. DSS] Neutron star cross section https://commons.wikimedia.org/wiki/File:Neutron_star_cross_section.jpg [credit: NASA] Fermi Spots 'Superflares' in the Crab Nebula https://www.youtube.com/watch?v=qDhdwgK218E [credit: NASA/Goddard Space Flight Center] What is a pulsar? https://www.youtube.com/watch?v=gjLk_72V9Bw [credit: NASA's Goddard Space Flight Center] Jocelyn Bell http://blog.sciencemuseum.org.uk/insight/2013/03/20/1960-discovery-of-pulsars/ [credit: National Media Museum / Science & Society Picture Library] Beacons of X-ray Light https://www.youtube.com/watch?v=6p2OGc6a_TQ [credit: NASA/JPL-Caltech] Chandra Time-Lapse Movie http://chandra.harvard.edu/photo/2002/0052/animations.html [credit: NASA/CXC/ASU/J.Hester et al.] NASA's Fermi Satellite Finds Hints of Starquakes in Magnetar 'Storm' http://www.nasa.gov/content/goddard/nasas-fermi-satellite-finds-hints-of-starquakes-in-magnetar-storm [credit: NASA's Goddard Space Flight Center/S. Wiessinger] NASA's Swift Reveals New Phenomenon in a Neutron Star http://www.nasa.gov/mission_pages/swift/bursts/new-phenom.html#.Vcp-6flVhBe [credit: NASA's Goddard Space Flight Center] Cosmic Explosion Second Only to the Sun in Brightness https://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=20077 [credit: NASA/Goddard Space Flight Center Conceptual Image Lab]

wn.com/Neutron Stars Crash Course Astronomy 32

Blue Oyster Cult - Astronomy

Order: Reorder
Duration: 6:18
Updated: 17 Jun 2008
views: 1085261

Blue Oyster Cult's Astronomy from the album Secret Treaties

wn.com/Blue Oyster Cult Astronomy

Telescopes: Crash Course Astronomy #6

Order: Reorder
Duration: 12:01
Updated: 19 Feb 2015
views: 17894

Today Phil explains how telescopes work and offers up some astronomical shopping advice. -- How Telescopes Work 1:07 Refractors vs Reflectors 2:50 Technology and the Light Spectrum 7:45 -- PBS Digital Studios: http://youtube.com/pbsdigitalstudios Follow Phil on Twitter: https://twitter.com/badastronomer Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Subbable: http://subbable.com/crashcourse -- PHOTOS/VIDEOS http://en.wikipedia.org/wiki/Galileo_Galilei#mediaviewer/File:Justus_Sustermans_-_Portrait_of_Galileo_Galilei,_1636.jpg http://en.wikipedia.org/wiki/Human_eye#mediaviewer/File:Human_eye_with_blood_vessels.jpg http://en.wikipedia.org/wiki/Refracting_telescope#mediaviewer/File:Refractor_Cincinnati_observatory.jpg http://commons.wikimedia.org/wiki/File:Positive_lens_2.svg http://www.eso.org/public/images/yb_vlt_moon_cnn_cc/ http://en.wikipedia.org/wiki/Jupiter#mediaviewer/File:Jupiter_MAD.jpg http://en.wikipedia.org/wiki/Wide_Field_and_Planetary_Camera#mediaviewer/File:Hubble_Images_of_M100_Before_and_After_Mirror_Repair_-_GPN-2002-000064.jpg http://commons.wikimedia.org/wiki/File:Prime_focus_telescope.svg http://commons.wikimedia.org/wiki/File:Inspection_of_the_primary_mirror_of_the_Hubble_Space_Telescope8218871.jpg https://www.youtube.com/watch?v=ui6ernRFxOg#t=2m22s http://en.wikipedia.org/wiki/William_Herschel#mediaviewer/File:William_Herschel01.jpg http://commons.wikimedia.org/wiki/File:Grand_Canyon_National_Park,_23_Annual_Star_Party_2013_-_0082_-_Flickr_-_Grand_Canyon_NPS.jpg http://commons.wikimedia.org/wiki/File_talk:EM_spectrum.svg#mediaviewer/File:EM_spectrumrevised.png https://www.youtube.com/watch?v=RqX9vLj3_7w#t=4m52s http://pprc.qmul.ac.uk/~still/wordpress/?page_id=138 http://en.wikipedia.org/wiki/VERITAS#mediaviewer/File:MMT_FLWO_Amado_AZ_10359.jpg http://en.wikipedia.org/wiki/Astrophotography#mediaviewer/File:Henry_Drape_Orion_nebula_1880_inverted.jpg http://en.wikipedia.org/wiki/Astrophotography#mediaviewer/File:Orion-Nebula_A_A_Common.jpg http://en.wikipedia.org/wiki/File:PIA18593-Mars-CometSidingSpring-NEOWISE-20140728.jpg http://en.wikipedia.org/wiki/File:NASA-HS201427a-HubbleUltraDeepField2014-20140603.jpg http://upload.wikimedia.org/wikipedia/commons/2/2b/Jupiter_and_its_shrunken_Great_Red_Spot.jpg http://upload.wikimedia.org/wikipedia/commons/thumb/5/58/Chromatic_aberration_3.svg/2000px-Chromatic_aberration_3.svg.png http://upload.wikimedia.org/wikipedia/commons/5/56/The_Whirlpool_Galaxy_%28M51%29.jpg http://hubblesite.org/newscenter/archive/releases/2005/12/image/a/

wn.com/Telescopes Crash Course Astronomy 6

Discovery 100 Greatest Discoveries 1of9 Astronomy DivX AC3 720P

Order: Reorder
Duration: 44:23
Updated: 01 Sep 2014
views: 36043
author: Dan Oniciuc

wn.com/Discovery 100 Greatest Discoveries 1Of9 Astronomy Divx Ac3 720P

Nebulae: Crash Course Astronomy #36

Order: Reorder
Duration: 12:16
Updated: 15 Oct 2015
views: 15084

Astronomers study a lot of gorgeous things, but nebulae might be the most breathtakingly beautiful of them all. Nebulae are clouds of gas and dust in space. They can glow on their own or reflect light from nearby stars. When they glow it’s usually predominantly red from hydrogen and green from oxygen, and when they reflect and scatter light it’s from massive hot stars, so they look blue. Stars are born in some nebulae, and create new ones as they die. Some nebulae are small and dense, others can be dozens or hundreds of light years across. Crash Course Astronomy Poster: http://store.dftba.com/products/crashcourse-astronomy-poster -- Table of Contents Nebulae Are Clouds of Gas And/Or Dust 0:42 They Can Emit Light Or Reflect It 1:20 Elements Change Their Glow 3:31 Nebulae Can Create Stars 5:28 -- PBS Digital Studios: http://youtube.com/pbsdigitalstudios Follow Phil on Twitter: https://twitter.com/badastronomer Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Patreon: http://www.patreon.com/crashcourse -- PHOTOS/VIDEOS Saturn https://www.flickr.com/photos/badastronomy/10328043663/sizes/o/in/photostream/ [credit: Photo by NASA / JPL / Space Science Institute / Gordan Ugarkovic] Carina Nebula http://www.spacetelescope.org/news/heic0707/ [credit: NASA, ESA, N. Smith (University of California, Berkeley), and The Hubble Heritage Team (STScI/AURA)] Crab Nebula http://sci.esa.int/herschel/53338-herschel-and-hubble-composite-image-of-the-crab-nebula/ [credit: ESA/Herschel/PACS/MESS Key Programme Supernova Remnant Team; NASA, ESA and Allison Loll/Jeff Hester (Arizona State University)] Carina Jets http://www.spacetelescope.org/images/heic1007a/ [credit: NASA, ESA, M. Livio and the Hubble 20th Anniversary Team (STScI)] The Twin Jet Nebula http://www.spacetelescope.org/images/heic1518a/ [credit: ESA/Hubble & NASA] Tycho's Supernova Remnant http://chandra.harvard.edu/photo/2011/tycho/ [credit: X-ray: NASA/CXC/Rutgers/K.Eriksen et al.; Optical: DSS] Ring Nebula's True Shape http://hubblesite.org/newscenter/archive/releases/2013/13/image/a/ [credit: NASA, ESA, C.R. O'Dell (Vanderbilt University), and D. Thompson (Large Binocular Telescope Observatory)] 3D animation of the Orion nebula http://www.spacetelescope.org/videos/astro_bo/ [credit: ESO/M. Kornmesser] Stardust http://stardust.jpl.nasa.gov/images/science/idp-m.jpg [credit: NASA] From the Pleiades to the Hyades http://www.deepskycolors.com/archive/2011/11/06/from-the-Pleiades-to-the-Hyades.html [credit: Rogelio Bernal Andreo] How to Become a Star http://www.eso.org/public/images/eso0102a/ [credit: ESO] The Orion Nebula http://www.eso.org/public/images/eso1103a/ [credit: ESO/Igor Chekalin] Trapezium Cluster in the Orion Nebula http://www.spacetelescope.org/images/opo0019b/ [credit: K.L. Luhman (Harvard-Smithsonian Center for Astrophysics, Cambridge, Mass.); and G. Schneider, E. Young, G. Rieke, A. Cotera, H. Chen, M. Rieke, R. Thompson (Steward Observatory, University of Arizona, Tucson, Ariz.) and NASA/ESA] PIA08656 http://www.jpl.nasa.gov/spaceimages/images/largesize/PIA08656_hires.jpg [credit: NASA/JPL-Caltech/IRAS/H. McCallon] Edge-On Protoplanetary Disc in the Orion Nebula http://www.spacetelescope.org/images/opo9545h/ [credit: Mark McCaughrean (Max-Planck-Institute for Astronomy), C. Robert O'Dell (Rice University), and NASA/ESA] Hubble's sharpest image of the Orion Nebula with proplyd highlights https://www.spacetelescope.org/images/heic0917ab/ [credit: NASA, ESA, M. Robberto (Space Telescope Science Institute/ESA), the Hubble Space Telescope Orion Treasury Project Team and L. Ricci (ESO)] Young Stellar Disks in Infrared http://www.spacetelescope.org/images/opo9905b/ [credit: D. Padgett (IPAC/Caltech), W. Brandner (IPAC), K. Stapelfeldt (JPL) and NASA/ESA] The Eagle Nebula, M16 https://www.noao.edu/image_gallery/html/im0725.html [credit: T.A.Rector (NRAO/AUI/NSF and NOAO/AURA/NSF) and B.A.Wolpa (NOAO/AURA/NSF)] Pillars of Creation http://hubblesite.org/newscenter/archive/releases/2015/01/image/e/warn/ [credit: NASA, ESA, and the Hubble Heritage Team (STScI/AURA)] Planetary Nebula HFG1 https://www.noao.edu/image_gallery/html/im1110.html [credit: T.A. Rector (University of Alaska Anchorage) and H. Schweiker (WIYN and NOAO/AURA/NSF)] Zooming in on the Horsehead Nebula http://www.spacetelescope.org/videos/heic1307c/ [credit: NASA, ESA, and G. Bacon (STScI); ESO] Orion, from Head to Toes http://www.deepskycolors.com/archive/2010/10/22/orion-from-Head-to-Toes.html [credit: Rogelio Andreo Bernal] Sifting through Dust near Orion’s Belt (mouseover comparison) http://www.eso.org/public/images/comparisons/eso1219a/ [credit: ESO/APEX (MPIfR/ESO/OSO)/T. Stanke et al./Igor Chekalin/Digitized Sky Survey 2]

wn.com/Nebulae Crash Course Astronomy 36

High Mass Stars: Crash Course Astronomy #31

Order: Reorder
Duration: 12:17
Updated: 10 Sep 2015
views: 40163

Massive stars fuse heavier elements in their cores than lower mass stars. This leads to the creation of heavier elements up to iron. Iron robs critical energy from the core, causing it to collapse. The shock wave, together with a huge swarm of neutrinos, blast through the star’s outer layers, causing it to explode. The resulting supernova creates even more heavy elements, scattering them through space. Also, happily, we’re in no danger from a nearby supernova. Crash Course Astronomy Poster: http://store.dftba.com/products/crashcourse-astronomy-poster -- Table of Contents Massive Stars Fuse Heavier Elements Up To Iron 1:15 Iron Uses High Amounts of Energy, Thus Making Stars Collapse 3:58 The Resulting Supernova Creates Even Heavier Elements 10:00 Relax, Something Else Will Kill You 9:04 -- PBS Digital Studios: http://youtube.com/pbsdigitalstudios Follow Phil on Twitter: https://twitter.com/badastronomer Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Patreon: http://www.patreon.com/crashcourse -- PHOTOS/VIDEOS Blowing Bubbles http://chandra.harvard.edu/resources/animations/pne.html [credit: NASA/CXC/April Jubett] The Sizes of Stars http://www.eso.org/public/images/eso1030c/ [credit: ESO/M. Kornmesser] Red giants https://commons.wikimedia.org/wiki/File:Redgiants.svg [credit: Wikimedia Commons] Alpha Orionis http://imgsrc.hubblesite.org/hu/db/images/hs-1996-04-a-print.jpg [credit: A. Dupree (CfA), NASA, ESA] Sun and VY Canis Majoris https://commons.wikimedia.org/wiki/File:Sun_and_VY_Canis_Majoris.svg [credit: Wikimedia Commons] Witch Head Nebula and Rigel http://www.deepskycolors.com/archive/2009/11/16/witch-Head-Nebula-and-Rigel.html [credit: Rogelio Bernal Andreo] Layers of a massive star https://en.wikipedia.org/wiki/User:FT2/scc#/media/File:Massive_star_cutaway_pre-collapse_(pinned,_8M%2B).png [credit: Wikimedia Commons] NASA's Swift Reveals New Phenomenon in a Neutron Star http://www.nasa.gov/mission_pages/swift/bursts/new-phenom.html#.VcvAYflVhBd [credit: NASA's Goddard Space Flight Center] What is a black hole? http://www.nasa.gov/audience/forstudents/k-4/stories/nasa-knows/what-is-a-black-hole-k4.html [credit: NASA/CXC/M.Weiss] The Death of Stars http://www.spacetelescope.org/videos/hubblecast52a/ [credit: ESA/Hubble] Giant Mosaic of the Crab Nebula http://www.nasa.gov/multimedia/imagegallery/image_feature_460.html [credit: NASA, ESA, J. Hester (Arizona State University)] Hubble and Chandra spot a celestial bauble http://www.spacetelescope.org/images/heic1018b/ [credit: NASA, ESA, the Hubble Heritage Team (STScI/AURA), and NASA/CXC/SAO/J. Hughes] Vela Supernova Remnant http://www.glitteringlights.com/Images/Nebulae/i-pqWFzmt/O [credit: Marco Lorenzi] Spica [credit: Phil Plait] Cassiopeia A https://en.wikipedia.org/wiki/Cassiopeia_A#/media/File:Cassiopeia_A_Spitzer_Crop.jpg [credit: Oliver Krause (Steward Observatory) George H. Rieke (Steward Observatory) Stephan M. Birkmann (Max-Planck-Institut fur Astronomie) Emeric Le Floc'h (Steward Observatory) Karl D. Gordon (Steward Observatory) Eiichi Egami (Steward Observatory) John Bieging (Steward Observatory) John P. Hughes (Rutgers University) Erick Young (Steward Observatory) Joannah L. Hinz (Steward Observatory) Sascha P. Quanz (Max-Planck-Institut fur Astronomie) Dean C. Hines (Space Science Institute)] Sloshing Supernova http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=11735 [credit: NASA's Goddard Space Flight Center Video and images courtesy of NASA/JPL-Caltech] Star Burst http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=11447 [credit: NASA's Goddard Space Flight Center Video courtesy of ESA/Hubble/L. Calcada]

wn.com/High Mass Stars Crash Course Astronomy 31

Introduction to Astronomy

Order: Reorder
Duration: 4:46
Updated: 18 Jul 2011
views: 206214

This HD dramatic video choreographed to powerful music introduces the viewer/student to the wonders of Astronomy. It is designed as a "trailer" to be shown in classrooms by Earth Science and Astronomy teachers in High School and college as a visual "Introduction" to the magic of the cosmos. Please rate this video and feel free to comment. If you like it, please help me spread the word by posting links on your media websites. The more students who can enjoy these dramatic videos, the better! To view all of my videos in Biology, Earth Science, and Astronomy, subscribe to my channel at: http://www.youtube.com/user/sfgregs?feature=mhum. I will be releasing new videos periodically. You can download all of my videos for free from Vimeo, my other video site. The link is available in the "About" section of this channel. I wish to thank all the quality video and music producers whose postings enabled me to assemble this video for educational use. To best enjoy this video, turn up your speakers. The music is very powerful and dramatic! I can customize this video to add your name or school name at the end credits, for a very modest fee. If interested, email me at "fsgregs@comcast.net"

wn.com/Introduction To Astronomy

Star Clusters: Crash Course Astronomy #35

Order: Reorder
Duration: 10:36
Updated: 09 Oct 2015
views: 16445

Last week we covered multiple star systems, but what if we added thousands or even millions of stars to the mix? A star cluster. There are different kinds of clusters, though. Open clusters contain hundreds or thousands of stars held together by gravity. They’re young, and evaporate over time, their stars let loose to roam space freely. Globular clusters, on the other hand, are larger, have hundreds of thousands of stars, and are more spherical. They’re very old, a significant fraction of the age of the Universe itself, and that means their stars have less heavy elements in them, are redder, and probably don’t have planets (though we’re not really sure). Crash Course Astronomy Poster: http://store.dftba.com/products/crashcourse-astronomy-poster -- Table of Contents Open clusters contain hundreds or thousands of young stars 00:29 Over time, open clusters evaporate 3:23 Globular clusters contain hundreds of thousands of old stars in spherical formation 5:50 Globular clusters have less heavy elements, thus probably do not have planets 6:43 -- PBS Digital Studios: http://youtube.com/pbsdigitalstudios Follow Phil on Twitter: https://twitter.com/badastronomer Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Patreon: http://www.patreon.com/crashcourse -- PHOTOS/VIDEOS Magellanic gemstone in the southern sky [NGC 290] http://www.spacetelescope.org/images/heic0603c/ [credit: European Space Agency & NASA] Extreme star cluster bursts into life in new Hubble image http://www.spacetelescope.org/images/heic0715a/ [credit: NASA, ESA and the Hubble Heritage (STScI/AURA)-ESA/Hubble Collaboration] View of a Sun-like star within an open cluster (artist’s impression) http://www.spacetelescope.org/videos/heic1321d/ [credit: NASA, ESA, and M. Kornmesser] Motion of stars in Omega Centauri http://www.spacetelescope.org/videos/heic1017a/ [credit: NASA, ESA, J. Anderson and R. van der Marel (STScI)] 47 Tucanae: Probing Extreme Matter Through Observations of Neutron Stars http://chandra.harvard.edu/photo/2013/47tuc/ [credit: NASA/CXC/Michigan State/A.Steiner et al] Hubble Refines Distance to Pleiades Star Cluster http://hubblesite.org/newscenter/archive/releases/2004/20/image/a/ [credit: NASA, ESA and AURA/Caltech] M45 Pleiades https://www.noao.edu/image_gallery/html/im1116.html [credit: T.A. Rector (University of Alaska Anchorage), Richard Cool (University of Arizona) and WIYN] From the Pleiades to the Hyades http://www.deepskycolors.com/archive/2011/11/06/from-the-Pleiades-to-the-Hyades.html [credit: Rogelio Bernal Andreo] Messier 035 Atlas Image https://commons.wikimedia.org/wiki/File:Messier_035_2MASS.jpg [credit: Two Micron All Sky Survey (2MASS), a joint project of the University of Massachusetts and the Infrared Processing and Analysis Center/California Institute of Technology, funded by the National Aeronautics and Space Administration and the National Science Foundation] Globular cluster 47 Tucanae http://www.spacetelescope.org/images/heic1510a/ [credit: NASA, ESA, and the Hubble Heritage (STScI/AURA)-ESA/Hubble Collaboration] The oldest cluster in its cloud http://www.spacetelescope.org/images/potw1428a/ [credit: ESA/Hubble & NASA] An unexpected population of young-looking stars http://www.spacetelescope.org/images/potw1244a/ [credit: ESA/Hubble & NASA] View of a globular cluster (artist’s impression) http://www.spacetelescope.org/videos/heic1321c/ [credit: NASA, ESA, and M. Kornmesser] All that glitters http://www.spacetelescope.org/images/potw1449a/ [credit: ESA/Hubble & NASA]

wn.com/Star Clusters Crash Course Astronomy 35

Life in The Universe Documentary | HD 1080p

Order: Reorder
Duration: 93:12
Updated: 24 Jan 2013
views: 3673216

Website: http://goo.gl/TeWHRS NEW CHANNEL : http://goo.gl/VWyWQG Like me on Facebook: http://on.fb.me/YkOACU Follow me on twitter: http://goo.gl/X7abM This documentary was made, produced and is completely owned by Discovery Channel. I do not own anything in this video. This video is only for educational purposes and I am not claiming this video as my own in any way.

wn.com/Life In The Universe Documentary | Hd 1080P

Uranus & Neptune: Crash Course Astronomy #19

Order: Reorder
Duration: 12:19
Updated: 28 May 2015
views: 18666

Today we’re rounding out our planetary tour with ice giants Uranus and Neptune. Both have small rocky cores, thick mantles of ammonia, water, and methane, and atmospheres that make them look greenish and blue. Uranus has a truly weird rotation and relatively dull weather, while Neptune has clouds and storms whipped by tremendous winds. Both have rings and moons, with Neptune’s Triton probably being a captured iceball that has active geology. This episode was brought to you by Squarespace http://www.squarespace.com/crashcourse -- Table of Contents Ice Giants With Small Rocky Cores 2:18 Thick Mantles of Ammonia, Water, and Methane 1:53 Atmospheres Makes Them Look Green And Blue 2:53 Uranus Has Dull Weather 3:35 Neptune Has Active Weather 7:19 Both Have Rings And Moons 5:12 -- PBS Digital Studios: http://youtube.com/pbsdigitalstudios Follow Phil on Twitter: https://twitter.com/badastronomer Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Patreon: http://www.patreon.com/crashcourse -- PHOTOS/VIDEOS Uranus http://en.wikipedia.org/wiki/Voyager_2#/media/File:Uranus2.jpg [credit: NASA/JPL/Voyager mission] Neptune https://www.nasa.gov/content/25-years-ago-voyager-2-captures-images-of-neptune/ [credit: NASA] King George III http://en.wikipedia.org/wiki/George_III_of_the_United_Kingdom#/media/File:Allan_Ramsay_-_King_George_III_in_coronation_robes_-_Google_Art_Project.jpg Uranus from Earth picture by Phil Plait Uranus, Earth size comparison http://en.wikipedia.org/wiki/File:Uranus,_Earth_size_comparison.jpg [credit: NASA] Uranus core, reconstructed from http://en.wikipedia.org/wiki/File:Uranus-intern-en.png [credit: Wikimedia Commons] Uranus http://www.spacetelescope.org/static/archives/images/screen/opo0647b.jpg [credit: NASA, ESA, L. Sromovsky and P. Fry (University of Wisconsin), H. Hammel (Space Science Institute), and K. Rages (SETI Institute)] Uranus storms http://www.keckobservatory.org/images/made/images/blog/Uranus_Aug20142_800_407.jpg [credit: Imke de Pater (UC–Berkeley)/Keck Observatory] Uranus and rings (tilt demonstration) http://en.wikipedia.org/wiki/Uranus#/media/File:Uranusandrings.jpg [credit: Hubble Space Telescope - NASA Marshall Space Flight Center] Uranus with rings and moons http://www.eso.org/public/images/eso0237a/ [credit: ESO] Miranda http://en.wikipedia.org/wiki/Moons_of_Uranus#/media/File:Miranda.jpg [credit: NASA] Verona Rupes http://apod.nasa.gov/apod/ap110404.html [credit: NASA] Neptune’s Interior https://solarsystem.nasa.gov/multimedia/display.cfm?IM_ID=283 [credit: Lunar and Planetary Institute] Neptune clouds http://en.wikipedia.org/wiki/File:Neptune_clouds.jpg [credit: NASA] Neptune’s Great Dark Spot http://en.wikipedia.org/wiki/Neptune#/media/File:Neptune%27s_Great_Dark_Spot.jpg [credit: NASA / Jet Propulsion Lab] Neptune’s Rings http://www.rolfolsenastrophotography.com/Astrophotography/Solar-System/i-vjMHSxz/A [credit: Rolf Wahl Olsen / NASA/JPL (Voyager 2, NASA Planetary Data System)] Triton http://en.wikipedia.org/wiki/Triton_(moon)#/media/File:Triton_moon_mosaic_Voyager_2_(large).jpg [credit: NASA / Jet Propulsion Lab / U.S. Geological Survey] Triton flipped http://en.wikipedia.org/wiki/File:PIA01538_Triton_flipped_v.jpg [credit: NASA/JPL] Triton Nitrogen Geysers http://en.wikipedia.org/wiki/Triton_(moon)#/media/File:Voyager_2_Triton_14bg_r90ccw_colorized.jpg[credit: NASA]

wn.com/Uranus Neptune Crash Course Astronomy 19