In early July 2025, astronomers introduced comet 3I/ATLAS, first noticed on July 1 by a Chilean telescope in NASA’s ATLAS community, is an interstellar customer with a hyperbolic orbit. The European Southern Observatory’s Very Giant Telescope (VLT) imaged the comet on July 3 with its FORS2 digital camera, capturing the clearest views but. These observations affirm 3I/ATLAS because the third interstellar object detected in our photo voltaic system (after 1I/’Oumuamua in 2017 and 2I/Borisov in 2019). The comet is now headed inward towards the Solar and can make its closest Earth strategy in late October 2025.

Excessive-Definition Telescope Imaging

According to NASA, upon discovery on July 1, 2025, by the NASA-funded ATLAS telescope, 3I/ATLAS was rapidly recognized as interstellar as a result of its extremely eccentric, hyperbolic orbit. On the time of the VLT observations on July 3, the comet was about 670 million kilometers from the Solar, transferring inward towards Earth. Within the ensuing VLT frames the comet seems as a small, fuzzy white patch with a faint tail; an ESO caption describes the picture as displaying a “white smudge” towards the black sky.
ESO notes that the stacked picture was created by digitally eradicating background stars, isolating a ‘deep picture’ of the comet. This confirms 3I/ATLAS is lively (with a visual coma of fuel and mud), so astronomers classify it as a comet somewhat than a naked asteroid. The timelapse video from FORS2 makes the movement of 3I/ATLAS clear: over 13 minutes the comet drifts relative to the starry background.

Significance and Future Observations

Orbit fashions present 3I/ATLAS will move closest to Earth in late October 2025. At the moment, it’ll lie close to the Solar and be unobservable to ground-based telescopes. It’s anticipated to reappear in early December 2025. Astronomers hope that learning 3I/ATLAS will reveal clues to its composition, construction and origin. ESO’s VLT and different telescopes will proceed observing the comet so long as it stays accessible. These observations will assist scientists evaluate 3I/ATLAS to ‘Oumuamua and Borisov, enhancing understanding of those objects’ origins and make-up.