A hotspot that is now located in the Atlantic played a key role in forming the lakes, home to a fifth of the world's fresh water.

President Joe Biden has brought a land mass bigger than the entire state of Rhode Island under federal protection.

This 2014 satellite photo shows Pakistan's Khor Kalmat tidal lagoon brimming with water at the heart of an arid desert. This ...

A hotspot that now lies in the middle of the Atlantic Ocean was once under the Great Lakes, and may explain why they formed where they did.

There was no visible flow of lava back into the vent after the pause, and the gradual drop in lava level is more likely because of loss of gas bubbles — summit lavas are 50% or more bubbles — or very ...

The Yellowstone supervolcano is stirring in its sleep. Scientists say the enormous magma pool is moving. Researchers from the ...