A small asteroid has been quietly following Earth’s orbit for decades—unseen, unbothered and, until recently, completely ...

The Earth stands alone in the solar system as a habitable world, as far as we know. But that doesn’t mean we don’t get visitors, most often in the form of (usually harmless) asteroids. Some even ...

So the bottom line is that the gravity of the closer tidal bulge on the Earth is pulling the Moon forward, which increases ...

A gem of a find by The Public Domain Review of a collection from the Rijksmuseum: photographs of plaster models of the ...

See a time-lapsed view of the NASA Artemis 1 Orion spacecraft, Earth and moon that was captured on Nov. 29, 2022. Credit: ...

Watch the crescent moon, Venus and the bright star Regulus align in a rare predawn close conjunction tomorrow.

A new NASA mission will capture images of Earth's invisible "halo," the faint light given off by our planet's outermost atmospheric layer, the exosphere, as it morphs and changes in response to the ...

Much as we may treasure and proclaim our independence, we actually live in a protective bubble called the heliosphere.

During an equinox, places around the globe experience nearly equal amounts of daytime and nighttime. The second occurrence this year happens on Monday. By Katrina Miller Sept. 19, 2025: This article ...