About 4.5 billion years ago, a Mars-sized object smashed into the young Earth, spraying debris that coalesced to form the moon, many scientists think. Some remnants of that object, called Theia, exist ...

Who knew that the greatest Bermudian mystery wasn’t to be found in the Triangle, but rather deep within its ocean floor? Seismologists have discovered an unprecedented geological feature – a ...

Over billions of years, Earth has been shaped by rising mountains, flowing magma and the slow, relentless pressure of time. Roughly 22 miles beneath our feet, the planet’s mantle begins — a thick ...

There’s a giant blob of incredibly hot rock beneath New Hampshire — and it may be part of the reason the Appalachian Mountains are still standing tall, according to new research. It has, however, been ...