A distant gas giant the size of 10 Jupiters is now the first planet outside Earth's solar system to be mapped in three ...

A coronal mass ejection on another star has been witnessed in its entirety for the first time, revealing that when these ...

A look at the potential effects of a rogue planet entering our solar system, from shifting Earth’s orbit to triggering ...

When evaluating possible planets out of the thousands out there, explained Prof. Bean, scientists look for liquid water as a ...

The space object, named Chiron, is believed to be a piece of rock measuring a whopping 130 miles wide at its broadest point - ...

Material around Chiron, a small icy world in the far reaches of the solar system, may be taking shape into a ring system of ...

Webb just spotted a carbon-rich moon factory 625 light-years away, revealing how moons like ours may have first taken shape.

Astronomers are gathering evidence of a massive hidden planet lurking beyond Neptune. Trump Cuts Millions After California ...

Planet Y is the latest in a series of hypothetical solar system planets that scientists have proposed in recent years, all with slightly different characteristics, but collectively believed to be ...

What's special about Chiron's rings is that they're still forming; this marks the first time astronomers have ever seen a ...

Our solar system now, once again, officially consists of only eight planets. Although largely debunked, speculation continued ...

Earth and the sun in our solar system - Drpixel/Getty Images When you see art of our solar system as the planet orbit the sun, you may notice that Earth's orbit has a tilt. It is not a perfect circle.