A rock containing many smaller round stones could indicate that there was once a large amount of liquid water on the Red ...

A weathered sign in the Minnesota River Valley proudly proclaims: “World’s Oldest Rock.” Erected in 1975, it marks a 3.8-billion-year-old gneiss — or so scientists thought.

Strangest of all, scientists have found that its gusts of gas are loaded with tiny crystals of metallic gold, no larger than 20 micrometers. Over the course of a single day, it's estimated that the ...

NASA’s Perseverance rover has recently discovered a remarkable rock on Mars that could potentially rewrite the story of the ...

Secondary gravity waves emerge as the hidden architects of global-scale thermospheric upheaval following the Tonga eruption in 2022.