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 ...

At 4 P.M. EDT, the Moon will pass 1.3° south of Mars, appearing horizontally aligned with it post-sunset. The pair will reach a height of 15° in the western sky by 9 P.M. local daylight time, ...