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 ...

Researchers are discussing 2025 PN7, a small celestial body that's following a similar orbital path to our planet's without being gravitationally tied to Earth ...

Daniel W.E. Green at the Central Bureau for Astronomical Telegrams, suggests that comet SWAN will hover near magnitude of +6, ...

Lunar minerals generate the rust mineral hematite when bombarded with high-energy oxygen particles, experiments show.

Copernicus proved the Earth and other planets orbit the sun, challenging centuries of belief and risking persecution for sharing his heliocentric view.

Witness the first images of the September 2025 partial solar eclipse. The moon and sun put on a magnificent show on Sept. 21 ...

Due to the influence the Earth plays on the moon’s momentum, the Earth’s rotation slows down in response, as explained by ...

Saturn will put on a show for professional and backyard astromers alike, and be the brightest and closest it has been to ...

Every year, the moon, Earth's reliable celestial companion for 4.5 billion years, is getting 1.5 inches away. The distance to the moon is calculated by measuring the amount of time it takes for light ...

The bottom of the world is front and center for a partial solar eclipse next week. Antarctica, New Zealand and a sliver of ...