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 ...

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 ...

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

En route to land on the moon, a spacecraft snapped views of Earth eclipsing the sun. The Blue Ghost lunar lander, built by the Texas-based company Firefly Aerospace for NASA, launched to space on Jan.