Researchers may have finally cracked the age-old mystery about the origins of Earth's water, and the answer might be related ...

The solar system has many more moons than the one we can see in the sky. But how many do we actually know about? And how many ...

New data from the James Webb telescope suggests that Bennu and Ryugu — two asteroids recently visited by sample-return ...

The Solar System has a total of 419 known moons around planets. If we count dwarf planets, asteroids, and other worlds, the ...