Earth

Earth may have had a Saturn-like ring system long ago, created from the debris of a passing asteroid that our planet tore apart.

Temperature fluctuations above Antarctica in winter show the earliest warming of the stratosphere on record.

Cosmic dust may have helped to kick-start life on Earth, new research suggests. The findings challenge a widely held assumption that this was not a plausible explanation.

A long-sought invisible electrical field wrapped around Earth has been detected more than half a century after it was first predicted to exist.

Structures that scatter seismic waves deep in Earth's mantle seem to be everywhere researchers look.

An Egyptian dig uncovered a massive building that shows considerable evidence of astronomy observations, including a sundial and features meant to track the sun and stars.

The recently launched satellite has been watching the spread of aerosols from wildfire smoke, creating a catalog that scientists say would eventually benefit weather forecasting.

Specks of dust known as presolar grains predate our solar system and contain information about stars that died long before our cosmic neighborhood formed.

The moon once drifted thousands of miles farther away, and Earth's days got 2.2 hours longer, a new study finds.

NOAA satellites in orbit have recorded real-time views of Hurricane Ernesto as it made landfall in Bermuda before sailing through the Atlantic.