Tuesday marks the tenth anniversary of a huge astronomical milestone: the first and only time we have landed on a comet. The ...

And now it's been the once-in-a-lifetime comet. The comet first entered our orbit Oct. 12 when it was closest to Earth at ...

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 ...

Hale-Bopp originated in the Oort Cloud, a theoretical shell of icy planetesimals surrounding the sun in the outer reaches of ...

An ancient comet is gracing our night skies this month. Catch it now because it won’t be back for another 80,000 years. Comet Tsuchinshan–ATLAS, discovered in 2023, is expected to be visible ...

On 12 November 2014, after a 10-year journey through the solar system and over 500 million kilometers from home, Rosetta's lander Philae made space exploration history by touching down on a comet for ...

Comet C/2023 A3 (Tsuchinshan-ATLAS) is still visible in the night sky, and you can watch it live today thanks to a free livestream. Comet Tsuchinshan-ATLAS is growing dimmer as it speeds away from ...

If you want to see what people are calling "the comet of the century," your last chance is coming up soon, as it will most likely not be visible with the naked eye anymore after this weekend.

Comet C/2023 A3 (Tsuchinshan–ATLAS) graces the dawn sky over the U.S. National Science Foundation ... [+] Kitt Peak National Observatory, a Program of NSF NOIRLab, just outside Tucson, Arizona ...

A view of Comet C/2023 A3 (Tsuchinshan–ATLAS), along with the faint anti-tail. Image: Michael Kieran As Comet C/2023 A3 (Tsuchinshan–ATLAS) barrels its way through space, some have gotten a ...

Update for Oct. 17: The Virtual Telescope Project's livestream of the full Hunter's Moon supermoon and comet ...