Visit ancient Mars—a surprisingly temperate planet where snow or rain falls from the sky, and rivers rush down valleys to ...

The Pope's last day, Easter Sunday, was marked by an appearance on the Loggia balcony of St. Peter's Basilica, meeting the ...

NASA's Mars Reconnaissance Orbiter captured a 328-foot-wide pit on Mars, potentially leading to subterranean caves. This ...

NASAs Curiosity rover has discovered siderite, a carbonate mineral, in Mars Gale Crater, offering strong evidence that the ...

A mineral called siderite found abundantly in rock drilled by a NASA rover on the surface of Mars is providing fresh evidence ...

Mars may once have had a relatively warm and wet climate conducive to flowing water, rain and snow, producing a terrain much ...

NASA spots a mysterious 100-meter hole on Mars that could lead to underground caves — raising hopes of hidden alien life and ...

Scientists at Nasa have discovered an out-of-place rock formation that has left researchers baffled about its origins. Dubbed ...

NASA's Perseverance rover captured rare footage of a massive Martian dust devil absorbing another, providing vital insights ...