When you buy through links on our articles, Future and its syndication partners may earn a commission. First imaged by NASA's Mariner 9 spacecraft in 1972, Valles Marineris has been captured by the ...

Arizona's Grand Canyon may be awe-inspiring, but it's just "a scratch" compared to the massive Valles Marineris Canyon on Mars. Slicing along the Martian equator for about 2,500 miles, the canyon ...

Can future crews on the Red Planet dive safely into this huge canyon system? When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Breaking space news, ...

Labroots has rich history of examining Mars in great detail, including its suite of awesome geologic formations, stunning orbiter images, two moons, geologic and observational history, and potential ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Stretching 18 miles wide and averaging 4,000 feet deep, the Grand ...

"We found a central part of Valles Marineris to be packed full of water — far more water than we expected." When you purchase through links on our site, we may earn an affiliate commission. Here’s how ...

Puzzles persist about possible water at seasonally dark streaks on Martian slopes, according to a new study of thousands of such features in the Red Planet’s largest canyon system. The study published ...

Martian boulders have tumbled down a cliff through the maze-like landmark, Noctis Labyrinthus. Credit: ESA/Roscosmos/CaSSIS Meditate on this massive rock garden: Several boulders once perched atop a ...

Mars has a huge network of canyons that stretches about 2,500 miles (4,000 kilometers) across its equator. This canyon system, called Valles Marineris, is the largest in the solar system, dwarfing ...