NASA says that this image, originally taken in 2017 by the Mars Reconnaissance Orbiter, shows several holes on the surface of the planet.

A MYSTERIOUS hole on Mars could be harbouring alien life in an extensive network of underground tunnels, according to Nasa. From orbit, scientists have captured a deep pit on the Red Planet that lo… ...

The Mars rover found geological formations in Gale Crater showing how water percolated beneath the surface, and mineral-filled cracks offer new clues about Mars' ancient climate.

Why is Mars barren and uninhabitable, while life has always thrived here on our relatively similar planet Earth?

NASA scientists test autonomous dog-like robots in Northern California caves.

NASA's Mars rover Curiosity has collected new data for a study of the Red Planet's past climate and carbon-rich minerals. The findings give clues about habitability.

Curiosity has traveled more than 20 miles (33 km) on Mars since first landing in Gale Crater on Aug. 6, 2012. (Image credit: NASA/JPL-Caltech/MSSS) Boxwork deposits are also found in caves on Earth.

Due to the harsh environment on Mars, Nasa is considering undergound habitation for its future human explorers. Martian caves could provide the only evidence of whether life exists on Mars.

“Holes such as this are of particular interest because they might be portals to lower levels that extend into expansive underground caves," NASA said. NASA says huge hole on Mars could be ...

NASA has released a new document that highlights planned programmatic paradigm shifts in Mars exploration over the next 20 years.

NASA has admitted that an over 300-foot-wide hole in the surface of Mars could be a 'portal' leading to alien life hiding underground on the Red Planet.