NASA has snapped an image of an over 1,000ft-long, winding trail cut through the sand on Mars. And the image may be the first ...

April 21 - 28 is International Dark Sky Week, a global celebration of the night sky during which like-minded organizations ...

Terrell Mars, 47, is suspected of entering a Mesa credit union on April 18, waving an object and demanding money from the ...

A rock containing many smaller round stones could indicate that there was once a large amount of liquid water on the Red ...

Discover how inhalation of Mars' toxic dust can cause lung diseases like those seen in miners.

The researchers found strong evidence of a chemical called dimethyl sulfide (DMS) in the planet's atmosphere. On Earth, DMS ...

Here’s the latest dirt on Mars. NASA’s trusty Curiosity rover, which has been exploring the so-called red planet for years, just unearthed something huge — a stash of carbon-rich carbonate minerals ...

"This float rock uniquely contrasts the surrounding light-toned outcrop with its dark tone and angular surface, and it ...

NASA has found a rock on Mars that it has dubbed Skull Hill. The rock is known as a "float rock," and NASA has no idea where ...

Scientists found complex volcanic rocks in Jezero Crater, hinting at ancient Mars life and geological history potential.

If future Mars colonizers want to survive without pressure suits, they’ll need to generate a denser atmosphere. One way to ...

Joel Achenbach writes about science and politics for The Washington Post's National desk. He has been a staff writer for The Post since 1990. He started the newsroom’s first online column, Rough ...