Latest about Comets
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.
Comet 3I/ATLAS is losing water 'like a fire hose' on full blast
Researchers have discovered that interstellar comet 3I/ATLAS has been shedding water, providing insights into the building blocks of life outside of our solar system and the evolution of interstellar comets.
'Closest view' yet of interstellar comet 3I/ATLAS captured by Mars orbiter
The European Space Agency's ExoMars orbiter has captured the closest view yet of the interstellar comet 3I/ATLAS. The images reveal the comet's bright coma but show no signs of a tail.
Interstellar comet 3I/ATLAS may come from the mysterious frontier of the early Milky Way, new study hints
The interstellar comet 3I/ATLAS does not come from our corner of the Milky Way, and may be a time capsule of the early galaxy, new research into its trajectory hints.
Newly discovered comet 'Lemmon' may be visible to the naked eye this month — but it will look more like a lime
Comet Lemmon, discovered earlier this year, will make a close approach to Earth later this month, giving skywatchers the chance to see its surprising lime-green glow.
Skywatching alert! See 2 bright comets on the same night as a meteor shower this October
Comet C/2025 R2 (SWAN) can now be seen with binoculars close to Mars in the western sky after sunset.
