Using its HiRise camera aboard the Mars Reconnaissance Orbiter, NASA captured breathtaking 4K images of Valles Marineris — a ...

Stretching over 2,500 miles long and seven miles deep, Valles Marineris is the largest canyon in the solar system — and ...

NASA’s Perseverance rover finds possible biological traces in Martian rocks — the strongest hint yet that life may have ...

On November 13, 1971, Mariner 9 became the first spacecraft to orbit Mars. At the time, scientists didn't know much about the ...

Scientists are now using some of the newest technology on Earth to unravel the most ancient secrets about the planet Mars. Member station KUNC's Rae Solomon has the story about how artificial ...

The ESA didn't need a fancy new mission to snap these images either. You can thank the venerable Mars Express orbiter, which has been in service for almost 20 years. Share on Facebook (opens in a new ...

This is the Valles Marineris, believed to be the biggest canyon in the entire solar system. At nearly 2,500 miles long, it would stretch clear across the continental United States. Much like Mars’s ...

New research is revealing similarities between Earth's Grand Canyon and ones on the red planet. It's informing future Martian exploration and settlement plans. Scientists are now using some of the ...