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

What can white dwarf stars eating their own planets teach astronomers about planetary and solar system formation and ...

In approximately 5 billion years, the sun will deplete its hydrogen fuel and collapse under its own gravity, becoming a white ...

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

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

Astronomers recently peered deep into space and found that an old, faint white dwarf named LSPM J0207+3331, located about 145 ...

Astronomers have discovered asteroid 2025 SC79, a skyscraper-sized space rock orbiting the sun in just 128 days. the ...

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

A newly discovered dwarf planet could hold the key to unlocking the mysteries of our solar system’s outer reaches — but what ...

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 ...

Astronomers have found GJ 251 c, a rocky planet. It is a super-Earth located only 18 light-years away. This planet is in its ...

By combining the power of ground-based and space-based telescopes, astronomers have discovered a new brown dwarf—a type of ...