National Geographic Explorer Mackenzie Calle spent 14 days in a Mars simulation program to prepare for humanity's future in ...

The rusty world is full of mysteries—and some of the solar system's most extreme geology. Learn more about Earth's smaller, colder neighbor.

Guests at the "Mars" dome in New York City had the opportunity to experience what it's like to land a spaceship on Mars with this cable-robot virtual reality ride. [Nat Geo's 'Mars' Invades NYC with ...

After a daredevil landing on Mars this week, NASA's new rover Curiosity is gearing up for the long haul on the Red Planet. But the rover still has time to star in a new National Geographic documentary ...