What was originally thought to be a planet orbiting the Fomalhaut star was probably just the fallout of a wild collision.

Twinkle, twinkle, little star. How I wonder what you, wait a minute, why are you twinkling so much? Um, guys, that's no ...

Almost 13,000 years ago, North America underwent drastic changes at a rapid rate. Mammoths, mastodons, giant ground sloths, ...

The US eyes Greenland for rare earth minerals and security, plus risks to NATO and markets amid China tensions. Read here for ...

The first full moon of 2026 and of winter in the Northern Hemisphere will shine brightly this week, just as Earth makes its ...

From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

An artist's impression of the collision between the early Earth and Theia, which may have formed the moon MPS / Mark A. Garlick Around 4.5 billion years ago, a planet called Theia is thought to have ...

Roughly four and a half billion years ago the planet Theia slammed into Earth, destroying Theia, melting large fractions of Earth’s mantle and ejecting a huge debris disk that later formed the moon.

Each second of filmmaker Daniel Raven-Ellison's short film represents one percent of the Earth's surface. Only eight seconds show intact forest. A wetland in the U.K., seen from above. The short film ...

The view of Earth from space is famously familiar—bright blue ocean, swirling gyres of white clouds, touches of terrestrial green. The luminosity of this image is the result of the sun’s rays shining ...

Researchers have discovered chemical fingerprints of Earth's earliest incarnation, preserved in ancient mantle rocks. A unique imbalance in potassium isotopes points to remnants of “proto Earth” ...

When a Mars-sized meteorite slammed into Earth billions of years ago, the impact completely reset any and all chemical processes on Earth, leaving nothing from before. Or so we thought. Reading time 3 ...