Roberto Orosei and colleagues authored a paper on the discover of a massive body of liquid water underneath ice on Mars that ...

On May 25, 2008, NASA's Phoenix lander arrived on Mars. [‘On This Day in Space’ Video Series on Space.com] Phoenix was NASA's sixth mission to successfully land on Mars, and it was the first mission ...

Elisha Sauers writes about space for Mashable, taking deep dives into NASA's moon and Mars missions, chatting up astronauts ...

Mars is the fourth planet from the sun and has a distinct rusty red appearance and two unusual moons. The Red Planet is a ...