Harvesting solar energy in orbit and beaming it down to Earth is a decades-old idea. Now, a raft of companies say they could ...

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 ...

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

Astronomers have identified 3I/ATLAS, an ancient, ice-rich interstellar comet potentially older than our solar system.

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

Astronomers using NASA's Swift telescope detected water on interstellar comet 3I/ATLAS in a surprising location. Discover how ...

An interstellar comet that originated outside our solar system just flew by the sun. Next, the object will fly by Earth in ...

Study discovered that Chiron, a small icy world between Saturn and Uranus, is forming rings. This shows how small worlds ...

Comet 3I/Atlas is soon going to be closest to the Sun in its journey through our solar system. Here are five facts that shed ...

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

While 3I/ATLAS is getting all the attention, there are a number of other comets visible through telescopes and binoculars in ...