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.

From June 6 to 8, 2025, visit the most beautiful gardens, squares and parks in Paris and the Paris region for the latest ...

It's been a dream of mine for a long while to find Pudding Stones! Pudding stones are a type of sedimentary rock known as ...

NASA’s Perseverance rover has captured an image of a never-before-seen Martian rock formation that scientists believe could ...