Although the Earth’s been decidedly blue for 600 million years, rising populations of phytoplankton caused by rising temperatures are once again causing the world’s oceans to turn green.

The find was made by an amateur fossil hunter on the Cliffs of Stevns, which offers “exceptional evidence” of the meteorite impact on Earth about 65 million years ago that brought an end to ...

A large asteroid dubbed 2024 YR4 now has a 2.2% chance of hitting the Earth on Dec. 22, 2032, according to NASA and the ...

Two asteroids that were almost as big fell to Earth 35.65 million years ago, but their effect was very different. Despite the devastation, it appears that they cause no long-term changes to the ...

A few fossilized body parts hinted at an enigmatic bird's close ties to waterfowl like ducks and geese. A newfound skull may bolster that idea.

A crater at the edge of the Yucatán peninsula in Mexico was created by a massive asteroid that hit Earth 66 million years ago At the end of the Cretaceous Period 66 million years ago, an ...

Scientists simulated what would happen if a medium-size asteroid were to strike Earth. One of those space rocks, asteroid ...

The best example may be a 6-mile-wide (10-kilometer-wide) asteroid that crashed into Earth, killed the dinosaurs and created Chicxulub crater about 65 million years ago. The NEOWISE mission started ...