Crystals hidden in Australia’s oldest rocks have revealed new clues about how Earth and the Moon formed. The study suggests ...

Rain gauges did not exist millions of years ago. Instead, researchers turn to indirect clues left behind in rocks, soils, and ...

Sponges are among Earth's most ancient animals, but exactly when they evolved has long puzzled scientists. Genetic ...

A new analysis of enigmatic skulls from the Republic of Georgia suggest that Homo erectus wasn't the only human species to ...

Scientists drilled to the bottom of Greenland's 1,600-foot deep Prudhoe Dome and found it disappeared in the early Holocene, ...

Scientists refine the timeline of sponge origins, showing soft-bodied ancestors likely evolved later than some chemical ...

Fossilized bones and teeth dating to 773,000 years ago are providing a deeper understanding of the emergence of Homo sapiens.

A 1.78-million-year-old partial elephant skeleton found in Tanzania associated with stone tools may represent the oldest ...

Two billion years before we made history and split the atom, the Earth had already accomplished it and was running its own ...

A giant impact on the early Earth could have brought the building blocks of RNA to our planet, which new research suggests ...

Analysis of core samples extracted from beneath an ice sheet indicates that the region is extremely responsive to the temperatures characteristic of today’s interglacial period. Researchers involved ...

Just 20,000 years ago, coastlines stretched farther, whole land bridges connected continents, and massive glaciers reshaped the map. This is the world as it looked during the last Ice Age.