For the first time, researchers re-created the high-pressure water ice likely found in the interiors of Uranus and Neptune.
Uranus is the seventh planet from the sun and the third-largest planet in the solar system. The blue-green gas giant has the coldest atmosphere of all the planets in the solar system. Uranus is the only planet in the solar system that orbits the sun on its side, and this extreme tilt is responsible for turning the planet's magnetic fields into a jumbled mess. So far only NASA's Voyager 2 spacecraft has studied the planet up close during a flyby in 1986, but researchers are still studying the planet with telescopes on and around Earth.
The clouds in Uranus' upper atmosphere are composed largely of hydrogen sulfide, the molecule that makes rotten eggs so stinky, a new study suggests.
The solar system's outer planets — Jupiter, Saturn, Uranus and Neptune — are mainly giant balls of gas much larger than Earth.
NASA's Planetary Science Division Director, Jim Green, talks to NASA Goddard's Amy Simon, who studies the outer planets Uranus and Neptune.
Uranus has 27 known moons discovered through telescopes as well as the Voyager 2 mission to the planet in 1986.
The giant impact from an Earth-size rock that knocked Uranus sideways may have also helped create the tilted planet's moons, a new study finds.
In this edition of Mobile Astronomy, we'll show you how to use your favorite mobile astronomy app to find Uranus and Neptune, and even see some of their moons!
Learn how our solar system formed, how it was discovered and the names of the planets, dwarf planets and regions of space that orbit our sun.
Since NASA's Cassini spacecraft has ended its epic 13-year stint at Saturn, here's a look at some other missions en route to new destinations or slated to launch in the next few years.
In honor of NASA's Voyager 1 probe's 40th anniversary today (Aug. 5), William Shatner helped send a special message to the distant spacecraft, selected by popular vote.
"Diamond rain" that may shower through the layers of Neptune and Uranus has been created in a laboratory for the first time, according to a new study.
Voyager project scientist Ed Stone discusses the greatest achievements of the epic mission, which lifted off 40 years ago today (Aug. 20).
NASA's epic Voyager mission began on Aug. 20, 1977, with the launch of the Voyager 2 probe. Space.com has selected 40 great Voyager photos to celebrate the mission's 40th anniversary.
New NASA mission ideas would investigate the gassy environments of Uranus and Neptune, two planets on the edge of the solar system that spacecraft have visited only once.
Bright auroras light up Uranus' atmosphere in two newly released photos, which combine observations by NASA's Hubble Space Telescope and the agency's Voyager 2 probe.