As Mars approaches opposition this month, it will become a dazzling spectacle in the night sky. See it at its best now, or ...

Geologically, Mars is very reminiscent of the moon. But it also looks a lot like the Earth. It all depends on who you ask.

NASA has arrived at two ways of returning samples collected on Mars to Earth. Now, the agency will test the options to see if ...

The ground on Mars is full of nitrogen, a vital component for planet life, raising hopes that it might be more hospitable ...

NASA sees two paths for saving its beleaguered plan to retrieve materials from the Red Planet but won’t choose between them ...

On Jan. 13, bright Mars will disappear behind the full moon for several hours. It's the only lunar occultation of Mars ...

Rising just before sunset on January 13, the Full Wolf Moon will be up all night, and will slip below the western horizon ...

"Springtime on Earth has lots of trickling as water ice gradually melts. But on Mars, everything happens with a bang," Serina ...

Witness a celestial show on Monday, Jan. 13 as Mars vanishes behind the moon in an occultation visible from the Coachella ...

Mars leaves Leo and retrogrades back to Cancer on Jan. 6, a transit that celebrity astrologer Kyle Thomas tells PEOPLE can be ...