This intriguing astronaut photo shows a trio of ancient "black mesas", which sit side-by-side in the Sahara desert. The dark structures have enabled a series of rare sand dunes to form around them ...

Why it's incredible: This massive submerged cave system is among the longest in the world and holds a number of spectacular features and remains. Sistema Ox Bel Ha, meaning "three paths of water" in ...

Scientists have long wondered why Earth's overall makeup doesn't fully match the mix of materials found in ancient meteorites. One hypothesis has been that our proto-Earth (what the earliest stages of ...

If our planet flips and no one’s around to hear it, does it still make a sound? Scientists have managed to put a chilling soundtrack to the flipping of Earth’s magnetic field — and the result is ...

the Earth you walk on today might not be the same planet that was born 4.5 billion years ago. Many scientists believe that in its infancy, Earth collided with another world the size of Mars, and that ...

Is this the start of Goo York City? UK scientists have discovered a massive “blob” of rock underneath the Appalachian mountains that’s slowly oozing its way toward New York City, per a slimy new study ...

The Local newsletter is your free, daily guide to life in Colorado. For locals, by locals. There are probably worse places I could have high-centered my truck. I hear the desert roads of the Western ...

The Nuvvuagittuq Greenstone Belt (NGB) – a complex geological sequence in northeastern Canada – harbors surviving fragments of Earth’s oldest crust, dating back to ~4.16 billion years old, according ...

Click play, go full-screen, lean back and enjoy. That's how easy it is now to get lost in the absolutely stunning scape that is our planet Earth from space as it streams live before your eyes. Sen, a ...

Whether it's rivers cutting through earth, lava melting through rock, or water slicing through ice, channels all twist and bend in a seemingly similar back-and-forth manner. But a new study has ...