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

Astronomers are investigating a potential hidden planet, dubbed Planet Y, far beyond Neptune. Its gravitational pull is suspected to be causing unusua ...

Chiron is a centaur approximately 200 km in diameter and takes about 50 years to complete a full orbit around the Sun.

LONDON — The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper's authors have ...

Viewed from orbit, Jackass Flats — situated in southern Nevada about 65 miles northwest of Las Vegas — could easily be confused for Mars. The alluvial basin is full of tan and gray regolit ...

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

New observations of a strange object that wobbles around the space between Jupiter and Uranus reveal what looks like a system ...

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. What's more, Earth is not the only planet that displays such ...

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

Scientists found two Earth-sized planets and a third candidate orbiting a nearby double star system, TOI-2267.

As 3I/Atlas neared its closest point to the sun in its orbit, the internet was abuzz with curiosity about the comet.

On August 24, 2006, our solar system lost a planet. It wasn't by cataclysmic destruction, but rather by the vote of the International Astronomical Union, which declared that Pluto, considered the ...