The seventh planet from the Sun in the solar system. Uranus orbits the Sun at an average distance of 19.2 AU. The planet has a mass 14.5 times the mass of Earth and a radius 4.0 times the radius of Earth. Uranus is a gas planet made of hydrogen, helium, and methane and has no solid surface. The planet's axial tilt is an extreme 98 degrees, causing one day on Uranus to equal 84 years, equal to the time it takes Uranus to orbit the Sun once.


Realm of the Giants The region beyond the asteroid belt is the realm...
Uranus To the eye alone, Uranus is a dull planet. It...

Radio Programs

Moon and Uranus The Moon takes aim at a faint giant Monday, December 1, 2014
Uranus at Opposition Lining up a giant oddball Monday, October 6, 2014
William Herschel II Making up for lost time Friday, November 15, 2013
Uranus at Opposition II A giant entourage for a giant planet Wednesday, October 2, 2013
Uranus at Opposition Pondering some “giant” mysteries Tuesday, October 1, 2013
Double Impact Bowling over a giant planet Sunday, September 30, 2012
Uranus at Opposition Overlooking a giant planet Friday, September 28, 2012
Rings of Uranus A dark discovery for a giant planet Thursday, March 8, 2012
Venus and Uranus A chance to see a distant giant Wednesday, February 8, 2012
Uranus at Opposition Diving into an icy planet Sunday, September 25, 2011
Moon and Giants Dreaming of distant moons Saturday, June 5, 2010
Uranus IV Dark debris around a distant planet Friday, June 4, 2010
Uranus III Heating up a planet's atmosphere Thursday, June 3, 2010
Uranus II Shining light on a planet's cool interior Wednesday, June 2, 2010
Uranus Changing seasons on a giant planet Tuesday, June 1, 2010
Jupiter and Uranus Giant worlds in the morning sky Monday, May 31, 2010
Changing Seasons Changing seasons on a hazy planet Friday, September 18, 2009
Ice World A planet-size meat locker Thursday, September 17, 2009
Uranus at Opposition A planet lies down on the job Wednesday, September 16, 2009

Featured Images

Hubble Space Telescope view of Uranus
Tilted Giant Monday, October 6, 2014
Hubble Space Telescope view of planet Uranus
Blue-Green Giant Tuesday, October 1, 2013
Rings and Moons
Rings and Moons Friday, June 4, 2010
Big Blue Planet
Big Blue Planet Tuesday, June 1, 2010
Faint Rings Thursday, September 6, 2007
Giant Discovery Monday, March 13, 2006


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