Experts have confirmed that the mysterious object hurtling towards us, previously dubbed A11pl3Z, is an "interstellar object.

Close stellar encounters could change the structure of our planetary system, potentially dooming Earth or other worlds to ...

There's a new interstellar object moving through our solar system and it's called 3I/ATLAS, according to NASA.

An object dubbed 3I/ATLAS is only the third interloper from outside the Solar System seen in all of human history.

For years, astronomers have been searching for a mysterious ninth planet lurking in the dark outer reaches of our solar ...

Recent observations have revealed carbon monoxide venting from the largest comet ever seen, providing clues about its origins ...

The impacts of space weather such as extreme solar winds and magnetic waves are not limited to outer space. Bursts of plasma emanating from the sun, for instance, can temporarily intensify electric ...

The interstellar object has been named 3I/Atlas by the International Astronomical Union’s Minor Planet Center.

Astronomers discovered that C/2014 UN271, a massive comet more than 10 times larger than any known comet, is emitting jets of ...

NASA's PUNCH mission has unveiled its first images of colossal solar eruptions known as coronal mass ejections (CMEs) — ...

The Sun’s outer atmosphere—the corona—only reveals itself during total solar eclipses, which happen about every 18 months on ...