A Mars image shows a strange square formation. Some think it's artificial, but experts suggest natural causes.

As Mars' once-plentiful lakes dried up, the remaining water sources likely became very salty, possibly offering a haven for ...

From the iconic "spiders on Mars" and a giant dog-shaped blob to an underground ocean and other newly discovered water deposits, here are our 10 favorite things found on Mars this year.

But thanks to Curiosity, we have a pretty good idea of what we'll find. Watch Destination: Mars on The Nature of Things.

"We're doing things on Mars that have never been done before," Schmidt says. Schmidt is also a Co-Investigator on the Planetary Instrument for X-Ray Lithochemistry (PIXL) team. The PIXL ...

The secret? Earthworms. That’s right, earthworms might be some of the first living things on Mars next to humans. Wamelink: When you are on Mars, you want to have a closed system so everything ...

“We’re finding things on Mars that are tantalizing interesting,” Paul Mahaffy, a former Curiosity investigator stated in an announcement on NASA’s website. “But we really need more ...

This story was updated to correct inaccurate position of Mars and Earth. Mars will appear its biggest and brightest this month when it reaches its closest position to Earth while simultaneously ...

Space fans across much of the US can witness the event as it happens in the night sky. On Monday, Mars will look reddish and bright as the moon passes in front of it, obscuring the planet for over ...

In his prepared remarks, Trump, a longtime backer of U.S.-led space exploration and exploitation, singled out Mars and left the moon hanging. “We will pursue our manifest destiny into the stars ...

On Feb. 18, 2021, NASA’s Perseverance rover landed on Mars and began collecting soil ... [the mission] as it’s currently envisioned,” things are not quite that grave. Last April, NASA ...

Is Mars the ultimate 'fallback' planet? Mark Starowicz When the early pictures starting coming in from the Mars Curiosity rover, I was seduced by the wonder of them. The pictures were so clear and ...