Mars has shone red in the night sky for as long as humans have gazed up at the cosmos, fascinating people from the ancient Romans to the present day. "The fundamental question of why Mars is red has ...

Exotically pitted “Swiss-cheese” terrain made of carbon dioxide (dry ice) overlies the topmost layer of water ice in Mars’ South Polar Massive Carbon Dioxide Ice Deposit. Image is about 1 kilometer ...

If you suddenly found yourself standing on the surface of Mars, it would feel like you’d been transported into a dusty space western. The arid soil lays a rocky palette of red powder across the ...

A former chief historian of NASA reflects on the history and future of Mars exploration Roger D. Launius The original 'Face on Mars' image taken by NASA's Viking 1 orbiter that resembled a human face ...

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Orbiting spacecraft and rovers deployed on Mars over the past twenty years have found strong evidence for conditions billions of years ago that were very different from the dry, cold environment of ...

BLOOMINGTON, Ind. — Epsom-like salts believed to be common on Mars may be a major source of water there, say geologists at Indiana University Bloomington and Los Alamos National Laboratory. In their ...

While volcanoes have brought profound changes to landscapes here on Earth, volcanic activity on other planets and moons has followed a different path. It's easy to imagine space volcanoes as even more ...

NASA has released two massive 360-degree panoramas from its Curiosity and Perseverance rovers, showing Mars’ geological history from opposite directions in time. Curiosity’s images from Gale Crater ...