It's possible that Mars' moons were originally asteroids that were captured by the planet's gravitational pull. There's also ...

It's officially summer, and with that comes the first full moon of the season. July's full moon -- known as the Buck Moon or ...

Stargazers in the U.S. will find the slender form of the crescent moon roughly 20 degrees above the western horizon right at ...

The full buck moon will reach its peak illumination on Thursday, July 10. It’s just one of this month’s celestial highlights.

Look for them around 10 p.m. local daylight time, roughly one-quarter up in the western sky. In addition to their closeness ...

Mars’ moons could be remnants of earlier rings, destined to form a new one A new paper suggests that a giant impact set off a process that's still going.

Mars' two moons, Phobos and Deimos, are small, irregular, but orbit in the same equatorial plane as the red planet. Although they've long been thought to be captured asteroids, ...

Mars has two small, funky-looking moons with strange orbits, and they may suggest that the red planet once had rings, like some of the larger planets in our solar system. The two lumpy moons ...

Mars rises over the moon's horizon at the best possible time; Two stunning conjunctions will light up the sky later this month. Here's how to view them.

Where did the moons of Mars come from? That’s a question scientists still can’t answer. We know that Earth’s moon was likely formed from a giant impact on our planet about 4.5 billion years ago.

Mars’ moons could be the remains of an ill-starred asteroid that got too close to the Red Planet. A shredded asteroid origin could help explain mysterious features of the small, ...