Earth’s surface is warming, but the upper atmosphere has been cooling for decades, and scientists now understand why.

Ice ages reshape the planet - but they don’t come out of nowhere. From orbital shifts to atmospheric changes, here’s what actually causes Earth to freeze.

Our solar system is currently passing through the Local Interstellar Cloud, a region of highly diluted gas and dust between the stars. On its path, Earth continuously accumulates iron-60, a rare ...

Deep under Antarctic ice, a 748-foot ice core recovered by the SWAIS2C project reveals past warm, ice-free periods on the ...

In 2015, after decades of relative stability, Antarctica's sea ice suddenly began to disappear. Sea ice extent reached a record low in 2023, and scientists have now figured out what happened in that ...

The Global Positioning System works because satellites carry atomic clocks. Those satellites orbit high above Earth, where ...

A Brief History of the Universe (and our place in it) is at once a fascinating story of discovery and a beautiful celebration of our endless curiosity.

Ancient volcanoes in the Arctic may have trapped Earth in repeated "Snowball Earth" freezes for 56 million years.

The Sturtian glaciation was one of the most extreme climate events in Earth’s history. Beginning around 717 million years ago ...

Scientists in China discovered that ancient humans were making surprisingly advanced stone tools during a harsh ice age ...

From a tête-à-tête with a leatherback turtle to horseplay with a baby gorilla and facing off against an irate capercaillie, ...