Comets
Latest about Comets
City-size comet regrows 'horns' after massive volcanic eruption
By Harry Baker published
The cryovolcanic comet 12P/Pons–Brooks, which will make its closest approach to Earth next year, has re-sprouted its distinctive "horns" after its second major eruption in four months.
A comet explosion may have started agriculture in Syria 12,800 years ago
By Sharmila Kuthunur published
A fragmented comet that exploded in Earth's atmosphere initiated the first-ever farming village in Syria, according to new research.
See green comet Nishimura's tail get whipped away by powerful solar storm as it slingshots around the sun (video)
By Harry Baker published
After surviving its closest approach to the sun, Comet Nishimura was buffeted by a possible coronal mass ejection that briefly blew its tail away. The rare event was captured by a NASA spacecraft.
Comet Nishimura photobombs NASA spacecraft after its close encounter with the sun (photos)
By Robert Lea published
Comet Nishimura has surprised NASA by photobombing its STEREO spacecraft, revealing it seems to have held together after its brush with the sun on Sept. 17.
Comets: Everything you need to know about the 'dirty snowballs' of space
By Charles Q. Choi, Daisy Dobrijevic last updated
Reference Comets are icy leftovers from the formation of the solar system. Explore these 'dirty snowballs' in more detail with our comet guide.
City-size comet headed toward Earth 'grows horns' after massive volcanic eruption
By Harry Baker published
The exploding comet, known as 12P/Pons–Brooks, is currently approaching its closest point to Earth during its 71-year orbit through the solar system.
Green comet soars in stunning 3D image of the Milky Way (photo)
By Miguel Claro published
Astrophotographer Miguel Claro captured a panoramic view of the Milky Way, a comet and other night sky sights from a dark sky preserve in Portugal. Watch it in virtual reality.
40 years ago, a comet came out of the blue in a surprise Earth flyby. Here's what we know now.
By Joe Rao published
Forty years ago this month, there came a show stopping celestial sight — literally a bolt out of the blue — as a new comet was discovered close to Earth.
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