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

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

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. On January 14, 2005, a spacecraft landed on one of Saturn's moons! The European Space Agency's Huygens probe hitched a ride on ...

The lunar crescent will disappear below the horizon before midnight on Jan. 22.

Mars is in conjunction with the Sun at 7 A.M. EST, invisible in our sky until mid-March. The bright moon Titan lies near its parent world, Saturn, in the evening sky tonight. The largest of the ringed ...

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

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.

A poisonous molecule, hydrogen cyanide, may have played a surprising role in the origins of life on Earth. Researchers have ...

Scientists have discovered that hydrogen cyanide forms strange "icy cobwebs" at low temperatures. These structures act as a ...

Spinoff 2026 marks the publication's 50th year documenting commercial uses of NASA technology. This edition's cover features Astronaut Alan Bean ...