On Jan. 31, 1958, Explorer 1 became the first satellite launched by the United States. Its primary science instrument, a cosmic ray detector, was designed to measure the radiation environment in Earth ...

Even when Earth was locked in its most extreme deep freeze, the planet’s climate may not have been as silent and still as ...

Sediments from Scotland hint that ocean-atmosphere interactions continued more than 600 million years ago despite widespread ice.

They show up as a mathematical solution in general relativity, basically as a time-reversed version of a black hole. Some ...

NASA has selected two Earth science missions for development, one focused on studying the atmosphere and the other on terrestrial ecosystems and ice.

A new study hints that Saturn's largest moon, Titan, was created around 400 million years ago, when two massive moons smashed ...

An experiment to quantify the amount of the universe’s lightest element in Earth’s core suggests that the planet’s water has ...

The discovery is just the latest to come from the asteroid sample, which dates back to the dawn of the solar system.

By Will Dunham WASHINGTON, Feb 14 (Reuters) - Astronomers have observed a planetary system that challenges current planet formation theories, with a rocky planet that formed beyond the orbits of its ...

Early last year, asteroid 2024 YR4 caught the public’s attention as its chances of hitting Earth in the near future climbed ...

Extreme solar activity or even a software glitch could put us just days away from a satellite collision in low-Earth orbit.

A planet that may exist, and may be habitable or may be frozen, has been discovered on an Earth-like orbit around a star 146 light-years away When you purchase through links on our site, we may earn ...