NASA has officially ended the MAVEN mission after failing to reestablish contact with the spacecraft.

A routine pass behind Mars marked the end of an era for one of NASA’s most important space missions. After more than a decade ...

Mars is about 140 million miles from our cozy planet. A human mission to that cold, rocky neighbor would mean being away from Earth for about 3 years. But the things those explorers would see and ...

Mercury, Venus, and Mars sit within the same general neighborhood as Earth, yet each has followed a radically different path. One kept a magnetic field against the odds. Another trapped so much heat ...