Spectacular clouds swirl across the surface of Jupiter. These clouds contain water, just like Earth's, but are much denser on ...

A four-planet system reveals remarkable insights about how planets form and how they change during their lifetime.

Compared to our 4.5-billion-year-old sun, ​​the 20-million-year-old V1298 Tau is a stellar baby, making it ideal for ...

Key takeawaysPlanets larger than Earth but smaller than Neptune are the most common kind in the galaxy, but because our solar ...

Most planetary systems contain worlds larger than Earth but smaller than Neptune, and the low-density planets around one ...

The boundary of a solar system is not defined by planets, but by gravity. Beyond Pluto and the Kuiper Belt lies the Oort Cloud, extending up to a light year from the Sun and still considered part of ...

The giant planets weren't always where we find them today. Jupiter, Saturn, Uranus and Neptune formed in a more compact configuration and later underwent a violent reshuffling that scattered them to ...

Earth may have a moon today because a nearby neighbor once crashed into us, a new analysis of Apollo samples and terrestrial rocks reveals. When you purchase through links on our site, we may earn an ...

Nothing manmade has reached further from Earth than the Voyager series of spacecraft. Hurtling away from the sun at 38,000 miles an hour, the duo have now traveled over 12 billion miles, with Voyager ...

This gas cloud located 500 light years away from our solar system is about to become a planet.This process usually takes a few hundred million years, but what if we made it happen much quicker. And ...

Roughly four and a half billion years ago the planet Theia slammed into Earth, destroying Theia, melting large fractions of Earth’s mantle and ejecting a huge debris disk that later formed the moon.

Simulations reveal that Jupiter’s rapid growth disrupted the early solar system, creating rings where new planetesimals formed much later than expected. These late-forming bodies match the ages and ...