Uranus & Neptune: Crash Course Astronomy #19
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.
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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
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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]