- published: 13 Feb 2016
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The Milky Way is the galaxy that contains our Solar System. Its name "milky" is derived from its appearance as a dim glowing band arching across the night sky whose individual stars cannot be distinguished by the naked eye. The term "Milky Way" is a translation of the Latin via lactea, from the Greek γαλαξίας κύκλος (galaxías kýklos, "milky circle"). From Earth, the Milky Way appears as a band because its disk-shaped structure is viewed from within. Galileo Galilei first resolved the band of light into individual stars with his telescope in 1610. Until the early 1920s, most astronomers thought that the Milky Way contained all the stars in the Universe. Following the 1920 Great Debate between the astronomers Harlow Shapley and Heber Curtis, observations by Edwin Hubble showed that the Milky Way is just one of many galaxies—now estimated to number as many as 200 billion galaxies in the observable universe.
The Milky Way is a barred spiral galaxy that has a diameter usually considered to be about 100,000–120,000 light-years but may be 150,000–180,000 light-years. The Milky Way is estimated to contain 100–400 billion stars, although this number may be as high as one trillion. There are probably at least 100 billion planets in the Milky Way. The Solar System is located within the disk, about 27,000 light-years from the Galactic Center, on the inner edge of one of the spiral-shaped concentrations of gas and dust called the Orion Arm. The stars in the inner ≈10,000 light-years form a bulge and one or more bars that radiate from the bulge. The very center is marked by an intense radio source, named Sagittarius A*, which is likely to be a supermassive black hole.
Year 100 (C) was a leap year starting on Wednesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Traianus and Frontinus (or, less frequently, year 853 Ab urbe condita). The denomination 100 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
A billion is a number with two distinct definitions:
American English always uses the short scale definition but British English has employed both versions. Historically, the United Kingdom used the long scale billion but since 1974 official UK statistics have used the short scale. Since the 1950s the short scale has been increasingly used in technical writing and journalism, although the long scale definition still enjoys common usage.
Other countries use the word billion (or words cognate to it) to denote either the long scale or short scale billion. For details, see Long and short scales – Current usage.
A star is a luminous sphere of plasma held together by its own gravity. The nearest star to Earth is the Sun. Other stars are visible to the naked eye from Earth during the night, appearing as a multitude of fixed luminous points in the sky due to their immense distance from Earth. Historically, the most prominent stars were grouped into constellations and asterisms, and the brightest stars gained proper names. Extensive catalogues of stars have been assembled by astronomers, which provide standardized star designations.
For at least a portion of its life, a star shines due to thermonuclear fusion of hydrogen into helium in its core, releasing energy that traverses the star's interior and then radiates into outer space. Once the hydrogen in the core of a star is nearly exhausted, almost all naturally occurring elements heavier than helium are created by stellar nucleosynthesis during the star's lifetime and, for some stars, by supernova nucleosynthesis when it explodes. Near the end of its life, a star can also contain degenerate matter. Astronomers can determine the mass, age, metallicity (chemical composition), and many other properties of a star by observing its motion through space, luminosity, and spectrum respectively. The total mass of a star is the principal determinant of its evolution and eventual fate. Other characteristics of a star, including diameter and temperature, change over its life, while the star's environment affects its rotation and movement. A plot of the temperature of many stars against their luminosities, known as a Hertzsprung–Russell diagram (H–R diagram), allows the age and evolutionary state of a star to be determined.
Orion may refer to:
In this episode: 4-(fourth) Interstellar space is the physical space within a galaxy not occupied by stars or their planetary systems.There are in fact 100 billion galaxies, each of which contain something like a 100 billion stars ahead on our journey next it is :25 trillion miles from home,or 4.37 light years away from the Sun. or 150 thousand Years ride on the Space Shuttle is Alpha Centauri is a triple star composed of a main binary yellow dwarf pair (Alpha Centauri A and Alpha Centauri B), and an outlying red dwarf, Proxima Centauri. Both A and B form a physical binary star, designated as Alpha Centauri.- Epsilon Eridani (ε Eri, ε Eridani) is a star in the constellation Eridanus. At a distance of 10.5 light years (ly), it has an apparent magnitude of 3.73. It is the third closest of t...
Space Exploration, The Universe, Exploration, Documentaries, Universe Documentary, Space Exploration - The Universe The Milky Way - Documentary 2015, Space, Universe. Universe, The Universe, Future Earth, Space Documentary, Universe Documentary,The Universe Documentary, Future Travel. Documentaries, Documentary Universe, Documentary Universe. https://www.youtube.com/watch?v=hgOlZVG2RZs&list;=PLTEq-I2WHEVgLvnFhFdBs43-rlm6uCGN- The Universe Documentary. The Unverse Documentaries, The Milky Way Documentaries. The Milky Way Wiki The Milky Way is the galaxy that contains our Solar System. Its name "milky" is derived from its appearance as a dim glowing band arching across the night sky whose individual stars cannot be distinguished by the naked eye. The term "Milky Way" is a translation of ...
The Milky Way is the galaxy that contains our Solar System.[18][19][20][nb 1] Its name "milky" is derived from its appearance as a dim glowing band arching across the night sky whose individual stars cannot be distinguished by the naked eye. The term "Milky Way" is a translation of the Latin via lactea, from the Greek γαλαξίας κύκλος (galaxías kýklos, "milky circle").[21][22][23] From Earth, the Milky Way appears as a band because its disk-shaped structure is viewed from within. Galileo Galilei first resolved the band of light into individual stars with his telescope in 1610. Until the early 1920s, most astronomers thought that the Milky Way contained all the stars in the Universe. Following the 1920 Great Debate between the astronomers Harlow Shapley and Heber Curtis,[24] observations by ...
Documentaries - Milky Way - Supermassive Black Hole - Documentary The Milky Way is the galaxy that contains our Solar System. Its name "milky" is derived from its appearance as a dim glowing band arching across the night sky whose individual stars cannot be distinguished by the naked eye. The term "Milky Way" is a translation of the Latin via lactea, from the Greek γαλαξίας κύκλος (galaxías kýklos, "milky circle"). From Earth, the Milky Way appears as a band because its disk-shaped structure is viewed from within. Galileo Galilei first resolved the band of light into individual stars with his telescope in 1610. Until the early 1920s, most astronomers thought that the Milky Way contained all the stars in the Universe. Following the 1920 Great Debate between the astronomers Harlow Shapley a...
Our galaxy - the Milky Way - is a spiral galaxy with arms extending from the center like a pinwheel. Our solar system is in the Orion arm of the Milky Way. Our Sun is one of about 100 billion stars in the Milky Way. And our galaxy is just one of roughly 100 billion in the visible universe. From our small world we have gazed upon the cosmic ocean for thousands of years. Ancient astronomers observed points of light that appeared to move among the stars. Eyes on the Solar System: Explore our galactic neighborhood in 3D. They called these objects planets, meaning wanderers, and named them after Roman deities -- Jupiter, king of the gods; Mars, the god of war; Mercury, messenger of the gods; Venus, the goddess of love and beauty; and Saturn, father of Jupiter and god of agricu...
(Subtitles in English, German, Spanish, and Catalan. Untertitel in Englisch, Deutsch, Spanisch und Katalanisch. Gaia is a satellite launched by the European Space Agency ESA in December 2013 with the main objective to measure the positions, motions, and distances (parallaxes) of more than one billion stars in our Milky Way. From 16-20 November 2015 more than 200 scientists and engineers of the Gaia Data Processing and Analysis Consortium (DPAC) met in Leiden, Netherlands. They discussed the status and progress of the Gaia mission in preparation of the first Gaia data release, which is planned for late summer 2016. The GENIUS documentary by Klaus Jäger and Stefan Jordan explains the main goals of the Gaia mission. It also contains interviews and statements from several scientists dire...
INFO: The Milky Way is the galaxy that contains our Solar System. Its name "milky" is derived from its appearance as a dim glowing band arching across the night sky whose individual stars cannot be distinguished by the naked eye. The term "Milky Way" is a translation of the Latin via lactea, from the Greek γαλαξίας κύκλος (galaxías kýklos, "milky circle"). From Earth, the Milky Way appears as a band because its disk-shaped structure is viewed from within. Galileo Galilei first resolved the band of light into individual stars with his telescope in 1610. Until the early 1920s, most astronomers thought that the Milky Way contained all the stars in the Universe. Following the 1920 Great Debate between the astronomers Harlow Shapley and Heber Curtis, observations by Edwin Hubble showed that the...
INFO: The Milky Way is the galaxy that contains our Solar System. Its name "milky" is derived from its appearance as a dim glowing band arching across the night sky whose individual stars cannot be distinguished by the naked eye. The term "Milky Way" is a translation of the Latin via lactea, from the Greek γαλαξίας κύκλος (galaxías kýklos, "milky circle"). From Earth, the Milky Way appears as a band because its disk-shaped structure is viewed from within. Galileo Galilei first resolved the band of light into individual stars with his telescope in 1610. Until the early 1920s, most astronomers thought that the Milky Way contained all the stars in the Universe. Following the 1920 Great Debate between the astronomers Harlow Shapley and Heber Curtis, observations by Edwin Hubble showed that the...
New Video of giant Jupiter rising above the city of Perth! https://www.youtube.com/watch?v=fXQbgPy7rtA Solar System Planet Size This video shows the size of the planets in our Solar System in order of smallest planet to largest planet. Starting with the small rocky inner planets, Mercury, Venus, Earth, and Mars, and then moving through to the larger outer gas planets, Jupiter, Saturn, Uranus, and Neptune. Our Solar System is part of the Milky Way galaxy. The Milky Way is a spiral galaxy with arms which extend from the centre. Each of these arms, which spread out like a pin wheel, has a name. The name of the arm in which our Solar System resides, is the Orion arm. There are about 100 billion stars in the Milky Way, of which our Sun and the Solar System are but one. Each of the other Sun...
A Space Video: Taking a look at the known universe catalouged in the Tully database. Every spec of light that you see in the cubed area is a galaxy. Our Sun is located in The Milky Way which is 100,000 light years across and contains between 100 and 400 billion stars. Our solar system is located in the region of the Milky Way called the Orion-Cygnus arm and is about 25,000 light years away from the galactic center. Created With Starry Night Pro and captured with an Elgato HD 60.
100% Chillout (Disc 1) 00:00 - 01 Soul Rebel (Pistol Remix) - Bob Marley 03:59 - 02 9PM (Till I Come) (Bent Remix) - ATB 07:53 - 03 American Dream (Afterlife Remix) - Jakatta 12:16 - 04 I Can Hear Voices (Chilled Mix) - Hi-Gate 16:29 - 05 Always - Bent 19:12 - 06 Wish U Were Here (Charles Webster Remix) - Bliss 23:11 - 07 Eternity (Original Acoustic Mix) - Orion 27:10 - 08 Love Shy (Sandgate Mix) - Kristine Blond 31:05 - 09 Down - Afterlife 36:07 - 10 I Spy - Blutopia 39:35 - 11 100 Billion Stars (Afterlife Remix) - Lux 43:48 - 12 Star Power (Rui Da Silva Remix) - City Reverb 48:40 - 13 Get On You (Uner Up Mix) - X-Press 2 52:18 - 14 Reach Out - Midfield General Feat. Linda Lewis 55:23 - 15 See Lye - Tim Deluxe 59:38 - 16 Moonlight Party (Su...
Our galaxy - the Milky Way - is a spiral galaxy with arms extending from the center like a pinwheel. Our solar system is in the Orion arm of the Milky Way. Our Sun is one of about 100 billion stars in the Milky Way. And our galaxy is just one of roughly 100 billion in the visible universe. From our small world we have gazed upon the cosmic ocean for thousands of years. Ancient astronomers observed points of light that appeared to move among the stars. Eyes on the Solar System: Explore our galactic neighborhood in 3D. They called these objects planets, meaning wanderers, and named them after Roman deities -- Jupiter, king of the gods; Mars, the god of war; Mercury, messenger of the gods; Venus, the goddess of love and beauty; and Saturn, father of Jupiter and god of agricu...
In your eyes, I see reflections of my life
And every time I hear you cry, it breaks my heart
I know why I feel no emptiness inside
Because you're always on my mind
I know that you love me too
I need nobody but you
'Cause you make me feel all right
You are my only wonder
I'm always by your side
I need nobody but you
'Cause you make me feel this way
I lay my heart into your hand
I love you more day by day
When you speak it's like a million angels singing
Just like a thousand bells are ringing
When you touch my hand
I see no other girls
That can compare to you
I never felt the way I do
When my heart's close to you
I need nobody but you
'Cause you make me feel all right
You are my only wonder
I'm always by your side
I need nobody but you
'Cause you make me feel this way
I lay my heart into your hand