The discovery of 1I/Oumuamua, 2I/Borisov and 3I/ATLAS showed that significant numbers of interstellar objects populate interstellar space. Their omnipresence...
During its closest approach to Mars on October 3, 2025, 3I/ATLAS was 30 million km away from ESA’s ExoMars Trace Gas Orbiter (TGO).
This image of the...
After 1I/ʻOumuamua and 2I/Borisov, 3I/ATLAS is the third object and the second comet from outside the Solar System confirmed.
This image from the Multi-Object...
Using the Gemini Multi-Object Spectrograph (GMOS) on the Gemini South telescope at NSF’s International Gemini Observatory in the Chilean Andes, astronomers...
Planetary researchers at Southwest Research Institute has completed a study detailing how a proposed spacecraft could fly by an interstellar comet, providing...
According to an analysis of the new images from the NASA/ESA Hubble Space Telescope, the nucleus of 3I/ATLAS is between 320 m (1,000 feet) and 5.6 km (3.5...
Astronomers using the Gemini North telescope at NSF’s International Gemini Observatory have captured 3I/ATLAS as it makes its temporary passage through...
Astronomers using ESO’s Very Large Telescope (VLT) have captured new images of 3I/ATLAS, the third interstellar object ever observed.
This VLT/FORS2...
3I/ATLAS is only the third object of its kind ever observed, following the interstellar asteroid 1I/ʻOumuamua in 2017 and the interstellar comet 2I/Borisov...
After the interstellar asteroid 1I/ʻOumuamua and the interstellar comet 2I/Borisov, 3I/ATLAS is the third object and the second comet from outside the...
The previously unreconciled acceleration of 1I/2017 U1 ‘Oumuamua, a strange object of extrasolar origin discovered on October 19, 2017 by the Pan-STARRS...
Dr. Manasvi Lingam from the Department of Aerospace, Physics and Space Sciences at the Florida Institute of Technology and Professor Avi Loeb of Harvard...
The recent detection of 2I/Borisov, the first known interstellar comet to visit our Solar System, implies that interstellar objects outnumber the non-interstellar...
An international team of astrophysicists has announced a new scientific project to search for evidence of potential astro-archeological artifacts or active...
Using spectroscopic observations from ESO’s Very Large Telescope, a duo of astronomers from Poland has detected atomic nickel vapor in the cold coma...
Two teams of astronomers have performed polarimetric observations of 2I/Borisov, the first active extrasolar comet ever detected in our Solar System, using...
1I/‘Oumuamua, a strange object of extrasolar origin discovered on October 19, 2017 by the Pan-STARRS 1 telescope, was small, about half as long as a...
Professor Abraham (Avi) Loeb of Harvard University believes that 1I/2017 U1 ‘Oumuamua, a fast moving, cigar-shaped object of extrasolar origin discovered...
