Interstellar Object 3I/ATLAS May Use Thrusters, Astrophysicist Claims

Astronomers are grappling with new insights into the interstellar object known as 3I/ATLAS, which some speculate could be powered by technological thrusters. Renowned astrophysicist Avi Loeb from Harvard University has noted that the object’s jets are not behaving as would be expected for a typical comet, raising questions about its origins and functionality.

Loeb highlighted the peculiarities surrounding 3I/ATLAS following its recent close encounter with the Sun. The object survived this solar flyby without disintegration, an anomaly that defies the behavior of ordinary comets. Instead of breaking apart, it emerged intact, displaying an unusual “anti-tail” and massive jets ejecting material in opposite directions.

In a recent post on his blog, Loeb detailed the findings from images captured on November 9, 2025, by researchers F. Niebling and M. Buechner. These images show tightly-collimated jets extending over a million kilometers. Loeb stated, “At the expected thermal speed of sublimated volatiles from a natural comet, 400 meters per second, it would take about a month for the material to traverse a million kilometers. How could these jets maintain their orientation if 3I/ATLAS is rotating every 16.16 hours?”

The astrophysicist proposed that these jets might be powered by technological thrusters that allow the object to maintain its orientation during rotation. This theory adds a layer of intrigue, suggesting that 3I/ATLAS could potentially be a spacecraft from another world.

In addition to the jets, astronomers detected a bizarre radio signal emanating from 3I/ATLAS, further intensifying speculation about its nature. The object’s ability to withstand extreme conditions during its solar encounter, while exhibiting behavior that contradicts known physical laws, has inspired a range of hypotheses among scientists.

Recent observations using the Nordic Optical Telescope on the island of La Palma in the Canary Islands revealed the persistent “anti-tail” phenomenon. This streak of debris is oriented towards the Sun, defying the typical behavior of comet tails, which are usually blown away from the Sun by solar winds. The unusual orientation of the anti-tail has led some experts to consider that it may simply be an optical illusion, though the evidence is still inconclusive.

The investigation into 3I/ATLAS and its peculiar characteristics continues to unfold, capturing the attention of the scientific community and the public alike. As researchers strive to unravel the mysteries of this interstellar object, the potential implications of its findings could reshape our understanding of comets and the possibilities of extraterrestrial technology.