In addition to comet C/2023A3, a new supermoon will be visible, and it will be the largest full moon of the year.

Tsuchinshan-ATLAS, also known as Comet C/2023 A3, will be at its brightest ... the solar system's largest planet. Perhaps these objects had their orbits around the sun disturbed by Jupiter ...

Tsuchinshan-ATLAS is a comet that will briefly appear in the October night sky before disappearing forever into deep space ...

Officially designated C/2020 F3, Comet NEOWISE was discovered ... Europa Clipper, the biggest interplanetary spacecraft that NASA has ever built, has embarked on a mission to tackle one of biology ...

The "once-in-a-lifetime" comet Tsuchinshan-ATLAS looks like it has grown a physics-defying second tail after reaching its closest point to Earth for more than 80,000 years, new photos reveal ...

Less than a week after the northern lights dazzled observers across California, stargazers are in for another treat.

BOSTON - It isn't often that we get the chance to see a comet with the naked eye. But, in a year already filled with so many astronomical treats, it looks like we will be able to add a comet to ...

In the days following its sweep around the sun, Ikeya-Seki was a spectacular sight in the late October and early November ...

It's "one of the brightest comets in our lifetimes", and only becomes visible every 80,000 years, so no wonder the science ...

This week, sky watchers get to experience the third in a series of four consecutive supermoons—a full moon that occurs near its closest point in its orbit of Earth. As you take in the splendor of ...

October's supermoon is the closest of the year and it's teaming up with a comet for a rare stargazing two-for-one ...