Evidence of tides on Mars caused by ancient seas could point to a third, lost moon of Mars. Here's the evidence to back up ...

Skylights, openings in the surface of Mars that descend down into caves, have been found on Mars, along with signatures for the presence of water ice. When you purchase through links on our site, we ...

NASA's Perseverance Mars rover has stumbled across an unusual sight: a stack of rocks on the Martian surface.

NASA's Curiosity rover landed on Mars back in 2012 and since then it's been put to work exploring the surface of the Red Planet. In the process, it's traversed more than 20 miles of the lunar surface, ...

University of Hawaiʻi computer scientist Kim Binsted talks about the the HI-SEAS program on Maunaloa, which simulates ...

Water once existed in abundance of at the surface of Mars. How much of that water has been stored in the planet's crust is still unclear, according to a new analysis. Water once existed in abundance ...

NASA's Perseverance rover has added to its trove of curious finds, as the space agency published a photo of a rock on the surface of Mars that looks like a centuries-old helmet. The rock has a pointed ...

One of the great unsolved problems in modern planetary science is written on the surface of Mars. Mars has canyons that were carved by rivers, so it was once warm enough for liquid water. How—and ...