The leading explanation for all of these mysteries is known as the giant impact hypothesis. According to this story, when the ...

Out past Neptune are countless small icy and rocky bodies called Trans-Neptunian Objects (TNOs), and many of these have moons ...

Saturn now leads the solar system with 274 known moons. Scientists say many moons formed from past collisions.

Astronomers have discovered a panoply of new moons orbiting Saturn, bringing the ringed gas giant's total up to 274 moons—far ...

The ringed gas giant Saturn has officially replaced Jupiter as the planet in our solar system with the most moons. The ...

For example, planetary moons can be split into two groups: regular moons ... He also writes Live Science's weekly Earth from space series.

When it comes to stopping lethal asteroids from striking Earth, the more scientists know about their ... by the Japan ...