The gullies of Mars remain active and tend to form during cold weather, implicating frozen carbon dioxide — also known as "dry ice" — rather than liquid water, researchers said.

Gullies that lace the surface of Mars look similar to those carved out on Earth by flowing water — but a new study shows that the life-giving liquid likely did not create the Martian features.

Gullies on Mars that appeared to have possibly been carved by water were probably dug out by great chunks of dry ice, a pair of French researchers say.

Mumbai Gullies' first event arrives next month.Events, hands-on, public testing and merchandise At the various events hosted by the developers, fans will have a chance to meet Malankar, who is ...

By examining data from NASA's Mars Reconnaissance Orbiter, researchers from the Johns Hopkins University Applied Physics Laboratory have found that gullies on modern Mars are most likely not being ...

Gullies that lace the surface of Mars appear similar to those carved out on Earth by flowing water -- but a new and deep look at the Red Planet turned up no evidence that the life-giving liquid is ...

A study offers new insights into how water from melting ice could have played a recent role in the formation of ravine-like channels that cut down the sides of impact craters on Mars.

A Brown University-led research team explains in a new study how gullies on the slopes of Martian craters could have formed by on-and-off periods of meltwater from ice on and beneath the planet ...

Mars's gullies may be formed by dry ice processes rather than flowing liquid water, as previously thought. Scientists show that, during late winter and spring, underneath the seasonal CO2 ice ...

The surface of Mars is woven with beautiful gullies. Until recently, scientists thought that liquid water played a role in carving out these vein-like channels.

They could host pools. The areas of white show pockets of dusty water ice on the edges of Martian gullies, NASA says. A cryoconite hole on the Isunnguata Sermia glacier in Greenland.