NASA's latest Astronomy Picture of the Day shows six major Saturn moons, offering a rare view of the planet's larger ...

Moons orbiting rogue planets, worlds flung from their parent star systems into the cold of interstellar space, could maintain liquid water on their surfaces for billions of years if wrapped in a dense ...

Saturn's largest moon, Titan, may be made of two different moons that smashed together hundreds of millions of years ago, a new study suggests. If confirmed, this epic collision could also help to ...

So far, humanity has yet to find its first "exomoon"—a moon orbiting a planet outside of the solar system. But that hasn't been for lack of trying. According to a new paper by Thomas Winterhalder of ...

Add Yahoo as a preferred source to see more of our stories on Google. An illustration of Uranus and its five largest moons, Miranda, Ariel, Umbriel, Titania and Oberon. In an alternate timeline, ...

We have an idea of what the solar system's past was like: It was violent and chaotic. However, we are still studying how violent it was. Current models suggest that at some point after their formation ...

New observations of some of Neptune's moons and rings are providing evidence of a catastrophe that occurred billions of years ...

Young Jupiter’s powerful magnetic field may have created a safe zone where several large moons could survive. Saturn lacked this protection, possibly explaining why Titan stands almost alone among its ...

In the far reaches of the solar system, the planetary neighbourhood seems quiet. Beyond Jupiter, the sun is no longer a blazing disc, but a cold, white lamp. The planets are separated by gulfs of ...

For two nights, the moon will host a cosmic party with three planets – Mars, Saturn and Uranus – that will be visible in the US and beyond.