Slightly larger than Earth’s Moon, Io is the innermost of Jupiter’s four large satellites and the most geologically violent ...

Around 4 billion years ago, an asteroid hit the Jupiter moon Ganymede. Now, a researcher realized that the Solar System's biggest moon's axis has shifted as a result of the impact, which confirmed ...

By Ethan Wang, Shi Bu and Ryan Woo BEIJING, Aug 21 (Reuters) - China is poised to launch Chang'e-7, its most technologically ...

Sophisticated high-contrast imaging has revealed asteroid 44 Nysa to have three lobes and a small moon.

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Flybys of Jupiter ...

Because the planets in our solar system are so bright, they flood the telescope's sensors with more light than they can ...

A solar eclipse is a rare, visually striking phenomenon. The Moon passes between Earth and the Sun, temporarily hiding our star – a geometrical alignment spanning millions of miles. A partial solar ...

A gargantuan asteroid impact on Ganymede, the solar system’s largest moon, significantly altered the body’s axis, according to a new study in Scientific Reports. Ganymede is a Jovian moon that is ...

Add Yahoo as a preferred source to see more of our stories on Google. An artist's conception of the exomoon, foreground, with its planet, center, and its star, left —ESO/M. KORNMESSER What has eluded ...

Astronomers have found strong evidence for a massive object orbiting a brown dwarf. This object behaves like a moon, circling another body which orbits a star. Researchers are calling it an ...