Extraterrestrial

Scientists publish findings of new hunt for alien technology on 3I/ATLAS

By T.K. Randall
January 1, 2026 ·  13 comments

Image: Artist's impression of the interstellar asteroid 'Oumuamua
Credit: ESA/Hubble, NASA, ESO, M. Kornmesser / CC BY 4.0 (adapted) Last year, speculation was rife over whether 3I/ATLAS - an interstellar object that has been speeding through our solar system - really is a mere comet or if it could be an artificially constructed alien spacecraft.

On December 18th, researchers with the Breakthrough Listen program recorded the most sensitive radio observations to date just before the object reached its closest approach to the Earth.

"There is currently no evidence to suggest that ISOs (interstellar objects) are anything other than natural astrophysical objects," the study authors wrote.

"However, given the small number of such objects known (only three to date), and the plausibility of interstellar probes as a technosignature, thorough study is warranted."

The goal of this particular study was to look for evidence of narrowband radio signals owing to their transmission efficiency and tendency to endure over very long distances through space.To begin with, the researchers picked up 471,000 candidate signals, but as these were filtered out, only nine potential candidates remained.

Sadly, a further analysis revealed these to be cases of radio frequency interference, not alien signals.

The results echo those of multiple other observations of 3I/ATLAS over the last few months and certainly seem to put any idea that the object is an alien spacecraft to bed.

"Our survey concludes that there are no isotropic continuous-wave transmitters above 0.1W at the location of 3I/ATLAS," the study authors concluded.

So is this truly the end for the idea that objects such as 3I/ATLAS could be alien spacecraft ?

Perhaps for now, but if this curious interstellar interloper really was an alien observation platform, it would be reasonable to suggest that any signals it did happen to be sending out could have also been deliberately masked from us...

Source: Phys.org | Comments (13)

Tags: Interstellar