Planet Earth

Atlantic currents slowed dramatically during the Younger Dryas period. By reconstructing those ancient ocean conditions, scientists think they can forecast changes over the next century.

Scientists think Tonga's record-breaking 2022 eruption was triggered by gas building up to a "critical point" rather than by a reaction between magma and seawater as previously assumed.

The Batagay megaslump — a 3,250-foot-wide (990 meters) depression in the permafrost in the Russian Far East — is "actively growing" by a massive amount every year, scientists have found.

A puzzling arc was spotted in the water of a Greenland fjord littered with iceberg fragments. There are a couple of possible explanations for this bizarre phenomenon but we will likely never know what caused it, experts say.

The Maud Rise polynya has been sporadically opening up in Antarctica's ice since at least the 1970s. Now climatologists finally know why.

The Cave of Crystals in Chihuahua, Mexico, is buried almost 1,000 feet (300 meters) beneath Earth's surface and contains giant gypsum crystal beams that are up to 37 feet (11 m) long.

A pair of odd twisters spun out from a supercell thunderstorm in Oklahoma Tuesday (April 30).

Arabica coffee plant appears to have evolved between 600,000 and 1 million years ago after two other coffee species crossbred in the forests of what is now Ethiopia.

Scientists have yet to reach the bottom of the Taam Ja' Blue Hole in Mexico's Chetumal Bay, which new measurements hint could be connected to a labyrinth of submarine caves and tunnels.

A satellite image of the Galápagos Islands' La Cumbre volcano shows lava seeping from the iguana-covered mountain days into an ongoing, months-long eruption.