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

which was the first successful mission to fly by Mars and send back close-up images of the planet. Red Planet Day is important because it highlights humanity's enduring quest to explore Mars and ...

Earth's North Pole is famous for its snowy climes - and for hosting Santa's workshop, of course. But as these pictures reveal, it's not the only planet with snow scenes this holiday season.

these images showcase what appears to be a snowy landscape in the Australe Scopuli region of Mars, near the planet's south pole. But the "snow" seen here is quite different from what we have on Earth.

Perhaps humans will one day join robots on the red planet. NASA has stated its goal to send humans back to the moon as a stepping-stone to Mars. Elon Musk, founder and CEO of SpaceX, is building a ...