Cross-section of comet 67P showing the 3D model of the layered structure compressed and folded by the collision of the lobes (arrows indicate the direction of compression). Disclaimer ...

The European Space Agency's star spacecraft, Rosetta, is honing in on its target, Comet 67P/Churyumov-Gerasimenko ... of the comet's misty aura, called a coma, which forms around the comet ...

the comet turned green, or rather, its coma acquired this color. Comets with a high concentration of the chemical compound diatomic carbon often display such unusual and rare coloring. Scientists ...

Philae is a spacecraft about the size of a washing machine, and it was dropped off at Comet 67P by another spacecraft named Rosetta in November of 2014. But when its landing harpoons failed to ...

Here’s the fun part, with a big caveat: Dust in the comet’s coma and tail tends to forward scatter light, meaning it sends light that hits it ahead at a shallow angle, like a rock skipping on ...

Comet Tsuchinshan-ATLAS, also known as C/2023 A3 to scientists and pronounced Choo-cheen-shahn, is expected to be visible to the naked eye across the Northern Hemisphere for several weeks in ...

As a comet gets closer to the sun, it heats up slightly. That causes the ice covering its nucleus to become a gas, creating a coma. This gas — and dust — from the coma trails behind the comet ...

Did you see it?Some stargazers Tuesday night were treated to a once-in-a-lifetime viewing of a rare comet.The comet, called A3 (Tsuchinshan–ATLAS), was discovered in 2023, and likely won't make ...

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 ...

Help us keep bring these critical stories to light. Your support makes all the difference. A comet that was last viewed by the Neanderthals tens of thousands of years ago could be seen tonight ...

An ancient comet that was last visible when Neanderthals roamed the Earth is soaring above our night sky again before it disappears for another 80,000 years. Tuesday night will present one of the ...

Comet Tsuchinshan–ATLAS graced in the dawn twilight at the end of September; in mid-October it will be brilliant in the evening sky. (C messier) Next week look out for the most spectacular sky ...