Astronomers have recently made a major discovery in our Solar System. They have identified 128 new moons orbiting Saturn, ...

Theia and Earth did not combine to form Moon, a new study suggests. The Moon might be a part of only Earth, a sibling 384,400 ...

The relative quantities of volatile gases like methane and ethane can reveal key details about distant Kuiper Belt objects.

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

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

Plus: Observe two stunning spirals, see Venus reappear as a morning star, and enjoy the Last Quarter Moon in the sky this ...

NEW YORK (AP) — Venus will pass between the Earth and sun on Saturday during what’s called an inferior conjunction. But don’t ...

Once its rings vanish from sight in March 2025, Saturn will look like a pale yellow sphere through most telescopes.

Deimos is the smaller and less photographed of Mars’ moons. This egg-shaped object, only measuring about 7.7 miles in ...

"We’re a good 15 years away from going to Mars, not five years as Elon Musk alludes to," former NASA astronaut José Hernández ...

These next two weeks bring us a potentially thrilling partial eclipse of the sun and amazing sights of Venus in its once-every-eight-years steepest departure from the evening sky.