The object dubbed Earth's "second moon" is actually a quasi-satellite that's accompanied the planet since 1957 — not a true ...

SAN FRANCISCO – NASA’s Earth Science Division is exploring partnerships with external organizations to support instrument ...

Earth's radiation budget is a core process of the Earth-atmosphere system, closely linked to global climate and environmental ...

The Earth channels cosmic power in the form of solar energy. The coming winter superstorm shows just what havoc that power ...

The amount of satellites in the Earth's orbit is increasing at a rapid rate, which could be a recipe for disaster. Here's ...

A new analysis suggests modern satellite networks could suffer catastrophic collisions within days of losing control during a major solar storm. The phrase “House of Cards” is often associated today ...

Satellites detected a mysterious gravitational change beneath Earth's surface, suggesting rapid movement of interior masses.

Learn more about the number of satellites circling Earth and the multiple ways they are changing the sky.