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.

Over millions of years, this limestone formation created a massive reef structure that stretched across hundreds of miles.

Experts say newly found karst cave has sediment 'gene pool' that hasn't been seen before, but it needs to be protected before ...

A team of scientists has uncovered new details about Mars’ Jezero Crater using the Perseverance rover's cutting-edge ...

Check out 24 of the world’s must unusual landscapes — from the hellish Darvaza Gas Crater in Turkmenistan to the “snow ...

Death Valley is the hottest, driest and lowest national park in the US – and arguably the most visually arresting.

Iran’s Zagros folds are visible via satellite imagery Formed by Arabian-Eurasian plate collision Offers insight into mountain ...

In a study co-authored by a Texas A&M University scientist, researchers have revealed new insights into the geological ...

Iran's folded rocks are a colorful formation that is part of the Greater Caucasus mountains, which formed when the Eurasian ...

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

Rock outcrops, long regarded as passive geological features, may play an active and crucial role in shaping soil function in mountain ecosystems, according to a new study published on March 31 in ...

The Beartooth Mountains are renowned for allowing visitors ... the Plateau Block is composed of metamorphosed sedimentary rock, but the Plateau Block appears to be older in age than the Snowy ...