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.

The American Innovation dollar series for 2025 continues with the planned release of bags and rolls of the coin commending ...

The pursuit of rigorous medical science is not compatible with capitulation to government demands aimed at weaponising and ...

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