Earth has a newly discovered—albeit temporary—companion in its journey around the sun. In research published this month in ...

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

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 ...

NASA is set to launch three spacecrafts Tuesday with the goal of unlocking the mysteries of solar weather at the edge of our ...

In this curious film, a pair of friends venture out into the desert to build an accurate to scale model of our solar system.

The bottom half of the world, known as the Southern Hemisphere, is about to be treated to a partial solar eclipse that won't ...

On Sept. 21-22, a partial solar eclipse will see the moon sweep over the sun's disk, blocking its light over a swathe of the ...

Earth is the only planet in our solar system with a single moon, making it a rare phenomenon for a planet of its kind.

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

NASA and NOAA launch three satellites to monitor space weather, protecting vital technologies like GPS and power grids from solar storms.

This invisible boundary is known as the heliosphere. It's the endpoint beyond which our Sun does not have any reach or power.

Did you see the bright star next to the moon? That was Venus, and part of a conjunction between the moon, Venus and the star ...