Emerging evidence suggests that plate tectonics, or the recycling of Earth's crust, may have begun much earlier than previously thought — and may be a big reason that our planet harbors life.

Late-stage planetary collisions reshaped Earth and its neighboring planets, delivering water, altering their atmospheres, and ...

A UCLA astronomer who leads planetary defense missions for NASA says avoiding asteroid impacts is “a problem we can ...

In the pursuit of finding anomalies that did not have connection to surface changes, researchers detected one that happened ...

Clues to our planet’s dramatic past are in the layers of rocks we might overlook. A great guide shows why they deserve our attention, says James Dinneen ...

A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and Earth. The authors dubbed it Planet Y.

This theory was the brainchild of Francis Crick (yes, the one who helped identify DNA) and Leslie Orgel, the originator of ...

Exoplanet TRAPPIST-1 e may contain an atmosphere and liquid water, NASA scientists said. Research into the exoplanet is ongoing.

In a new study, scientists look closely into “chemical fossils” in rocks, indicating that sponges were alive more than 541 ...

A new study reveals an intriguing possibility: asupernova explosion might have sent a surge of cosmic rays toward Earth ...

The little space rock, called 2025 TF, safely passed within roughly 250 miles (400 km) of our planet on Tuesday (Sept. 30) at ...

Our weekly roundup of the latest science in the news, as well as a few fascinating articles to keep you entertained over the ...