And now we know exactly where it's going to poke around.
By studying Martian meteorites, scientists think they've found an explanation for ancient eruptions on the Red Planet.
His favorite astronaut, his most beloved fictional space explorer, and the discoveries that would have changed the plot of 'The Martian.'
Oxygen-breathing critters might be more plausible than we thought.
There's a good reason NASA hasn't said they've found life on Mars—it's beyond their current capabilities.
Sorry, no aliens—yet.
But the search for life on the red planet isn't over yet.
Just a pale blue dot.
And should colonists on Mars be allowed to eat each other?
They're a potential source of food, air, clothing, and more. But will they survive the journey, and can we avoid contaminating the red planet?
Now let's see if he can make it reality
Space is hard, and Mars is even harder
The Department of Energy has an idea that could double production
Mark Watney, eat your heart out
They were good while they lasted
Almost as good as the book
Piping hot Jupiter fries, please!
A look at the spacecraft's first year studying the Martian atmosphere
The ocean-filled moon might hold the life we've long searched for in space. And scientists have one shot to reach it.
It's been 50 years since we got the first images of Mars. Now we're about to get the first images of Pluto.
More than 200,000 aspiring space explorers volunteered for a one-way trip to Mars. Are they insane?
Lost on the Red Planet? Ask Dr. Fred Calef III
Happy Carl Sagan day! Celebrate with this blast from the past in the pages of Popular Science