Artwork: Uranus and its five largest moons had been thought to be inactive and sterile. The planet Uranus and its five biggest moons may not be the dead sterile worlds that scientists have long ...

Ariel, Uranus’s fourth largest moon, is thought to be made of equal parts rock and ice. A new computer model developed at the University of Texas Institute for Geophysics could be used to detect ...

Scientists have discovered that deep trenches on Uranus’ moon Ariel might be pathways for material from its interior to reach ...

The planet Uranus, photographed by NASA’s Voyager 2 spacecraft in 1986. The planet and its moons are expected to be the target of NASA’s next major mission to the outer solar system.

These new discoveries likely complete Uranus and Neptune’s moon list down to sizes of between 5 and 8 miles across. But Jupiter and Saturn’s lists extend to even smaller satellites.

A rare grand celestial reunion is happening through February, with the moon shining close to Uranus on Wednesday, February 5. While the planets are always "aligned," seeing more than four in the ...

On Jan. 13, 1986, astronomer Stephen Synnott, using data collected by NASA’s Voyager 2 probe, discovered three additional moons in orbit around Uranus. Those moons are Desdemona, Rosalind and ...

A rare planetary parade gave the January moon an additional charm as Venus, Saturn, Mars, Jupiter, Uranus and Neptune aligned in the sky on January 21. The planets will be together in the night sky ...

On this date, Jan. 13, 1986, astronomer Stephen Synnott using data collected by NASA’s Voyager 2 probe discovered three additional moons in orbit around Uranus. Those moons are Desdemona ...