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

Everything you need to know about the full “Wolf Moon,” including exactly when, where and how to see it at its best from ...

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 ...

The Red Planet comes closest to Earth, disappears behind the Moon in an occultation, and finally reaches opposition in the ...

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

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

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

From arachnid-like formations and mysterious blobs to an underground ocean and a giant volcano, here are our 10 favorite ...

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

NASA's Curiosity rover has made a groundbreaking discovery on Mars by uncovering pure sulfur crystals within a broken rock.

January's full Wolf Moon will make Mars disappear, but it's only temporary. Watch for the red planet's vanishing act from the ...