The mystery of Martian farts won't be solved overnight.
Every little bit counts.
If alien life exists below the surface of Mars, it might very well have a thing or two in common with these populations.
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.
The news isn't great, but it's not a showstopper either.
There's a good reason NASA hasn't said they've found life on Mars—it's beyond their current capabilities.
But that's not too weird for the red planet.
It's caught in a storm that now covers a quarter of the planet, and is still growing.
Sorry, no aliens—yet.
It's time to return to our hellish neighbor.
Ready, set, go.
Just a pale blue dot.
Here's what it would take to survive this particular doomsday prophecy
Short answer: a time machine
The answer was blowing in the solar wind.
And should colonists on Mars be allowed to eat each other?
A quick primer on Martian law
The next big step towards sending humans to Mars
Findings from the MAVEN spacecraft suggest solar eruptions helped to destroy Mars' atmosphere
Bringing snark to Mars
A Gallery Of Photos Curated By The Person Who Made Most Of Them
More than 200,000 aspiring space explorers volunteered for a one-way trip to Mars. Are they insane?
Happy Carl Sagan day! Celebrate with this blast from the past in the pages of Popular Science