Latest about Comets
Comet 3I/ATLAS has been transformed by billions of years of space radiation, James Webb Space Telescope observations reveal
The interstellar comet 3I/ATLAS has a thick irradiated crust that no longer resembles its home star system, simulations and James Webb Space Telescope observations have found.
NASA spacecraft reveal interstellar comet 3I/ATLAS brightened rapidly as it swooped behind the sun
Interstellar comet 3I/ATLAS is briefly out of view as it travels around the sun this week, but researchers and amateur astronomers used spacecraft data to track its progress right up until perihelion.
'Miracle' photo captures Comet Lemmon and meteor seemingly entwined over Earth
An astronomer in Italy caught a fortuitous image of the bright comet Lemmon seemingly entwined with the glowing trail of a "shooting star."
Interstellar object 3I/ATLAS is about to get very active — Space photo of the week
The interstellar comet 3I/ATLAS is barreling toward its closest point to the sun as perihelion looms on Oct. 29. How different will it look when it reappears on the other side?
New images of interstellar object 3I/ATLAS show giant 'jet' shooting toward the sun
New telescope images show that the interstellar comet 3I/ATLAS is shooting a giant jet of gas and dust toward the sun. This is normal behavior for comets, an expert told Live Science.
Superbright 'Comet Lemmon' gets its tail temporarily torn to pieces by solar wind
An astrophotographer snapped a stunning shot of Comet Lemmon's flowing tail getting shredded by a strong gust of solar wind, just three days before it reaches its closest point to Earth.
Superbright 'Comet Lemmon' flies through auroras over Scotland during surprise solar storm
A photographer snapped a striking shot of Comet Lemmon streaking over Scotland as the night sky unexpectedly filled up with a technicolor mix of vibrant auroras.
Comets Lemmon and SWAN reach their brightest this week
Comet Lemmon (C/2025 A6) makes its closest approach to Earth on Oct. 21, about 24 hours after the fainter Comet SWAN (C/2025 R2) does the same. Here's how, where and when to see them both.
