A burp of methane on Mars would indicate that the planet might be more alive than previously thought. But where did it come from?
On the 956th sol of Curiosity's mission on Mars, the 6-wheeled NASA rover watched the sun dip below the horizon.
NASA's Mars Reconnaissance Orbiter (MRO) has spotted its roving buddy Curiosity on the Martian landscape, but the rover seems to be missing its tell-tale tracks in the red planet's dirt.
These unusual formations are located in the frozen windswept desert that is the Arsinoes Chaos region of Mars.
Mars may be a frigid desert, but perchlorate salts in the planet’s soil are lowering the freezing temperature of water, setting up conditions for liquid brines to form at equatorial regions.
Transport yourself to Mars and stare in wonder at these stunning views of Red Planet sunsets through our robotic explorers' eyes.
As far as rocks on any planet go, this formation looks fascinating -- but these rocks are on Mars and they hold clues to TWO periods of water on the red planet.
After Curiosity dramatically touched down on Mars in 2012, it kicked up some dirt that still hasn't faded from view.
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