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

Squat rhinos lived in North America about 12 million years ago, congregating in huge, water-bound herds much like modern hippos.

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.

"You could pull up Google Earth images of places like Utah, zoom out, and you’d see the similarities to Mars." ...

Talks had stalled late last year but have since resumed. Upper Basin negotiators, including Colorado's lead, Becky Mitchell, are pushing for supply-driven management of reservoirs like Lake Powell and ...

Water from both volcanic rocks and deep mantle melted Earth's crust 1.6 billion years ago. This long-lasting melting formed ...

Enhanced rock weathering (ERW) is a proposed method of carbon dioxide sequestration that involves spreading crushed silicate ...

Since its touchdown in Jezero Crater in February 2021, NASA’s Perseverance rover has steadily explored Martian rocks. From ...