One summer night in 1877, American astronomer Asaph Hall was looking through his telescope in Washington, D.C. Mars was at its closest point to Earth in its orbit, and Hall had one question on his ...

A long-lost moon could explain why Mars is so different from the other rocky planets in the solar system. Today, Mars has two tiny moons. But early in its history, the Red Planet may have had a much ...

There's not much hustle and bustle on Mars. The red planet is inhabited by no-one that we know of, except the robotic rovers toiling away to excavate its secrets. The only sound you'd hear is the ...

HOUSTON, Jan. 26, 2012 — -- A colony on the moon? Republican Presidential candidate Newt Gingrich floated the idea before a massive audience on Florida's space coast. Thousands lost jobs there ...