The atmospheric carbon dioxide was thought to be the result of the oxidation of oxygen molecules in the exosphere. As a ...

Scientists have recently discovered that Saturn's largest moon, Titan, might have an icy, slushy interior, instead of liquid as was previously concluded.

A distinctive curved marking etched into the Moon’s surface comes into sharp relief this week as winter darkness, crisp air ...

Do you know which planet could float in a giant bathtub? Discover the science behind its low density, its hundreds of moons, and its famous rings.

Look toward the southwestern horizon at sunset on Jan. 22 to witness the slender crescent moon cozy up to the gas giant ...

By a small margin, Titan is the second-largest moon in the solar system, and is also the only moon with a thick atmosphere.

Just moving out the moon-bound rocket to the launch pad was an incredible engineering feat. Watch how NASA got it done.

NASA and the Department of Energy signed an agreement earlier this week committing to put a nuclear reactor on the moon in ...

A Silicon Valley startup is accepting applications for a planned Moon hotel, with reservation deposits up to $1 million and total trip costs expected to exceed $10 million per guest.

On January 14, 2005, a spacecraft landed on one of Saturn's moons! The European Space Agency's Huygens probe hitched a ride on NASA's Cassini spacecraft to Saturn's largest moon Titan. It parted ways ...

A substance poisonous to humans — hydrogen cyanide — may have helped create the seeds of life on Earth. At cold temperatures, hydrogen cyanide forms crystals. And, according to computer models ...