In 2012, NASA's Mars Rover Curiosity photographed an outcrop with sedimentary structures resembling Earth's cross-bedded sandstones. The cross bedding, with large-scale layers sloping to the left, ...

This image of Mars' Valles Marineris hemisphere, captured on July 9, 2013, is a composite created from 102 images taken by ...

This view of Mars' Valles Marineris hemisphere from July 9, 2013, is a mosaic of 102 Viking Orbiter images. At the centre is the Valles Marineris canyon, over 2,000 km long and up to 8 km deep. This ...

The Curiosity Mars rover will be going on a “road trip” of sorts, travelling about 1.6 kilometres to get to its next destination on the Mount Sharp located in the Gale Crater.

For the fourth year in a row, iridescent clouds of frozen CO2 are lighting the Martian sky. The clouds appear in the same ...

The ripples suggest that the lake was free of ice at one point. Today, we know of Mars as a cold, dry desert, with patches of subterranean ice and ice caps at its poles. Billions of years ago ...

Storyful reported the skiers went to the crater on the night of Feb. 11. Mount Etna tour guide Dario Teri, meanwhile, told Storyful that Etna is one of the few volcanoes where people can ski "near ...

NASA's Curiosity Rover has spotted ancient wave ripples on Mars, providing evidence that liquid water flowed on the planet billions of years ago. Scientists have long known that water was once ...

The "Curiosity" rover has taken a highly fascinating photo on Mars. The photo published on the website of the US space agency shows an iridescent cloud, whose shape is strikingly reminiscent of a ...

A week of spectacular lava sprays on Sicily’s snow-capped Mount Etna, one of the world’s most active volcanos, has drawn thousands of people wanting to see the eruption. But the sudden influx ...

NASA's Curiosity rover photographed remnants of rippling waves in an ancient Martian lakebed, proving that the Red Planet had open water for longer in its history than previously thought.

From the tallest volcano in the solar system to billions of years old craters. Here are ten of the most astonishing and extreme geological places on our neighboring red planet.