Comet 3I/ATLAS, also known as C/2025 N1 (ATLAS), is the third known interstellar object to enter our Solar System. It was first observed by the NASA-funded ATLAS (Asteroid Terrestrial-impact Last Alert System) survey telescope in Rio Hurtado, Chile, on July 1, 2025. This is why the comet has 'ATLAS' in its name. '3I' is for the third observed interstellar (I) object to stumble into our solar system.
3I/ATLAS isn't just older than our solar system—it may be almost as old as the universe itself
Earlier estimates of its age were around 7 billion years, but a new study suggests it’s much older.
Published: 4 days ago | By Pranjal Nath
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
ESA's Juice captured interstellar comet 3I/ATLAS shortly after perihelion—here's what it found
The Jupiter-bound spacecraft got 120+ images that reveal jets, dust streams, and a glowing coma.
Updated: Mar 2, 2026 | By Sandip Kishan
Could we possibly catch up with 3I/ATLAS? A daring new plan says 'yes'
The plan aims to launch a spacecraft directed towards the comet in 2035.
Published: Feb 25, 2026 | By Biplab Das
NASA’s SPHEREx images 3I/ATLAS again, detects organic molecules in the interstellar comet
SPHEREx tracked the interstellar comet as it grew considerably brighter after perihelion.
Published: Feb 5, 2026 | By Biplab Das
Interstellar comet 3I/ATLAS tracked again by NASA’s exoplanet hunter TESS
NASA’s TESS tracked the interstellar comet during a special observation period from January 15 to 22, 2026.
Published: Jan 29, 2026 | By Mahalekshmi P
Interstellar comet 3I/ATLAS reaches rare Earth-Sun alignment on January 22
The other two known interstellar comets did not offer such an opportunity.
Published: Jan 22, 2026 | By Biplab Das
SPHEREx images show a marked difference in 3I/ATLAS' activity before and after perihelion
SPHEREx first analyzed the interstellar comet in August, when it was between Jupiter and Mars.
Published: Jan 22, 2026 | By Biplab Das
Sensitive radio observations looked for technosignatures on 3I/ATLAS and found silence
The search focused on narrowband signals used by all of humanity's spacecraft but found nothing.
Published: Dec 31, 2025 | By Pratham Gurung
Where is interstellar comet 3I/ATLAS now? Current position and visibility
The interstellar comet has already made its way past Earth and is on its journey towards interstellar space now.
Updated: Dec 26, 2025 | By Mahalekshmi P
From life on Mars to interstellar comet 3I/ATLAS: 5 space discoveries that defined 2025
The year has been extraordinary for the astronomical community, as groundbreaking findings have defined 2025.
Published: Dec 26, 2025 | By Mahalekshmi P
Interstellar comet 3I/ATLAS found to 'wobble' as it spews gas and dust
This is the first detailed detection of a jet of gas and dust shooting out from an interstellar comet's center.
Published: Dec 24, 2025 | By Raj Naik
Are materials from 3I/ATLAS on their way towards Earth? Avi Loeb shares his thoughts
The astronomer looked into the possibility of materials from 3I/ATLAS hitting Earth following the comet's closest approach.
Updated: Dec 23, 2025 | By Mahalekshmi P
3I/ATLAS: Where is the interstellar comet headed next after skimming past Earth?
On Friday, December 19, the comet made its closest pass to Earth, safely cruising by at a distance of approximately 167 million miles.
Published: Dec 22, 2025 | By Raj Naik
NASA's Europa Clipper captured a unique ultraviolet view of 3I/ATLAS
The Europa Clipper imaged the comet when Earth-based observation was not possible.
Updated: Dec 19, 2025 | By Pratham Gurung
Astrophotographer livestreaming 3I/ATLAS at closest approach says he doesn't 'believe it is a comet'
Texas astrophotographer Raman Madhira is questioning the object’s identity, claiming it fails to meet the standard criteria for a comet.
Updated: Dec 19, 2025 | By Raj Naik
A closer look at the latest 3I/ATLAS image in X-ray light: What ESA's XMM-Newton observed
Most telescopes capture comets in visible light, but XMM-Newton deployed its high-sensitivity EPIC-pn camera for a 20-hour deep dive into 3I/ATLAS.
Published: Dec 19, 2025 | By Raj Naik
3I/ATLAS latest update: Where to watch the interstellar comet livestream on December 19
The object was first spotted on July 1, 2025, by the NASA-funded ATLAS survey telescope based in Rio Hurtado, Chile.
Updated: Dec 19, 2025 | By Raj Naik
Here are some quick facts about 3I/ATLAS ahead of its closest approach to Earth
Discovered in July by the ATLAS telescope in Chile, this comet is on a one-way trip through our solar system.
Published: Dec 19, 2025 | By Raj Naik
Interstellar comet 3I/ATLAS's closest approach to Earth: Date, time and naked-eye visibility
The object was first officially spotted on July 1, 2025, by the NASA-funded ATLAS survey telescope based in Rio Hurtado, Chile.
Updated: Dec 19, 2025 | By Raj Naik