Comet C/2025 A6 (Lemmon) was initially discovered as an asteroid-like object by the Mount Lemmon Survey in Arizona on January 7, 2025, and was later reclassified as a comet once the coma and tail features were noticed. It made its closest approach to Earth on October 21, 2025, at a distance of around 55.4 million miles.
C/2026 S1: ESA’s Euclid telescope unexpectedly discovers its first comet 807 million miles away
Dark matter-hunting observatory Euclid unexpectedly found this previously unknown comet while doing a dark energy survey.
Updated: 7 days ago | By Lakshmi Kola
Like 50 tons of TNT: 200-pound comet piece explodes over Kentucky; NASA shares pictures
This piece from a comet was about 16 inches in diameter and was traveling at 145,000 miles per hour.
Published: Sep 11, 2026 | By Harsh Vardhan
Scientists propose ambitious spacecraft mission to study Halley’s Comet when it returns in 2061
The mission is envisioned to launch in the mid-2030s so a spacecraft can rendezvous with the comet.
Published: Sep 10, 2026 | By Harsh Vardhan
New study reveals fresh clues about the mysterious origin of comet 3I/ATLAS
"This object gives us a rare chance to study material that formed somewhere completely different from our own solar system."
Published: Sep 8, 2026 | By Ankita Garkoti
Spot Comet McNaught before it fades away: Here's how you can view it this September
Comet McNaught, which showed 2 dramatic flare-ups this summer, can fade out as it travels farther from the Sun.
Updated: Sep 7, 2026 | By Lakshmi Kola
Rare images show comet 220P/McNaught brightening by more than 600 times
The comet completes one orbit around the Sun every 5.5 years and passed perihelion 2 months ago.
Published: Aug 15, 2026 | By Pranjal Nath
Comet Tempel 2 to make its closest approach to Earth on August 3—viewing tips and its likely coordinates
The comet is named after German astronomer Wilhelm Tempel, who discovered it on July 4, 1873.
Published: Jul 30, 2026 | By Pranjal Nath
A near-Earth asteroid has revealed itself as a comet 27 years after its discovery in a NASA study
Scientists began suspecting the object when they saw unanticipated changes in its orbit.
Published: Jul 20, 2026 | By Harsh Vardhan
NASA's James Webb dates back comet 3I/ATLAS to 'cosmic noon,' raises questions about our solar system
The data obtained by Webb had two things that took researchers by surprise.
Published: Jun 24, 2026 | By Ankita Garkoti
Scientists scan interstellar comet 3I/ATLAS for alien signals again, confirm it's not a spacecraft
Scientists found no alien signals from interstellar comet 3I/ATLAS after a fresh 7-hour radio scan.
Published: Jun 5, 2026 | By Ankita Garkoti
Two spacecraft simultaneously capture both hemispheres of interstellar comet 3I/ATLAS
The imaging was done using an instrument that also found changing composition of the comet.
Published: May 18, 2026 | By Pranjal Nath
Interstellar comet 3I/ATLAS originated in a 'loner' place far colder than our solar system, scientists say
3I/ATLAS is now exiting our solar system at more than 137,000 miles per hour.
Published: May 12, 2026 | By Biplab Das
Comet R3 PanSTARRS to make closest approach to Sun and Earth this week—all you need to know
April skies light up as a comet with bright tail and rare visibility reaches perihelion.
Published: Apr 18, 2026 | By Disita Sikdar
Final moments of comet C/2026 A1 (MAPS) captured by NASA as it disintegrates near the Sun
SOHO, STEREO, and PUNCH show different perspectives of the Kreutz sungrazing comet’s dramatic end.
Updated: Apr 17, 2026 | By Sandip Kishan
3I/ATLAS was spewing 70 Olympic swimming pools' worth of water daily when ESA's Juice observed it
“When we realised that Juice would be close to the comet around its closest approach to the Sun, we realised what a unique opportunity this was to collect a once-in-a-lifetime dataset.”
Published: Apr 16, 2026 | By Sandip Kishan
April 2026 skywatching guide: Full Pink Moon and other stunning events to watch this month
From the Pink Moon, bright Mercury, and a meteor shower to a comet streaking across the sky, April is filled with exciting sights for skywatchers.
Published: Apr 1, 2026 | By Juhi Varma
NASA's Hubble finds comet that stopped spinning and started again in the opposite direction
'It’s like pushing a merry-go-round,' said one of the scientists who studied recent data on Jupiter-family comet 41P/Tuttle–Giacobini–Kresak.
Published: Mar 30, 2026 | By Pranjal Nath
Hubble Telescope accidentally captures comet C/2025 K1 (ATLAS) breaking up after perihelion
The researchers had initially selected a different target for Hubble.
Published: Mar 19, 2026 | By Sandip Kishan
How to spot Comet C/2026 A1 (MAPS) in the evening sky this week: Best viewing tips
The comet might be visible to the naked eye in the daytime next month. For now, observers will need some help spotting it.
Published: Mar 12, 2026 | By Juhi Varma
Interstellar comet 3I/ATLAS is full of alcohol, ALMA observations suggest
The interstellar comet holds more alcohol than almost all known comets in the solar system.
Updated: Mar 10, 2026 | By Sandip Kishan