Someone at Harvard suggested that 3I/ATLAS was an alien ship. A new test has revealed to us what it really is

Without a doubt one of the space objects that has been causing the most sensation in recent months is 3I/ATLAS. Practically everything has been said in recent months, from the fact that it is a simple asteroid that was going to destroy our planet to the fact that it was an alien shipas noted a professor from the prestigious Harvard. But all these ideas have been left in nothing thanks to the last signal that has been interpreted from this object.

What he imagined. Interstellar object 3I/ATLAS, the third such visitor ever detected, has kept the scientific community (and science fiction fans) in suspense since its discovery in July. The most “far-fetched” speculations, as experts have described them, went so far as to suggest that it could be an extraterrestrial spacecraft, especially when it temporarily disappeared behind the Sun.

The sign that explains everything. On October 24, the radio telescope MeerKAT In South Africa, a powerful network of 64 antennas captured the key evidence. This was neither an encrypted message nor a technological transmission from another species, but rather an absorption radio signal caused by hydroxyl molecules.

What does it mean. Hydroxyl molecules are the direct result of the ‘breaking’ of a water molecule. This is something that happens when the ice in the nucleus of a comet approaches the Sun and sublimates due to the large amount of energy it absorbs. That is, it automatically goes from solid to gas and this is what we have detected from Earth, as has explained Michael Küppers, scientist at the European Space Agency (ESA).

In summary, we are talking about 3I/ATLAS containing ice inside, as happens in comets (and not in extraterrestrial spacecraft). And we are completely sure of this, since these absorption signals are like the molecular DNI, it is unique for each compound.

Goodbye speculation. As we have mentioned before, the alien ship theory gained traction when the object hid behind the Sun. Some speculated that it was maneuvering or hiding from our radars. However, on November 4, 3I/ATLAS reappeared exactly where orbital calculations predicted it would be. There were no maneuvers, just physics.

Furthermore, it is not the first time it has been detected. Javier Peralta, an expert in planetary atmospheres, recalls that NASA’s Swift space telescope had already observed hydroxyl in the ultraviolet spectrum. MeerKAT’s new detection is crucial because it confirms the same composition in a completely different band of the electromagnetic spectrum: radio.

What does the future hold for us? 3I/ATLAS is the third known interstellar visitor, after 1I/’Oumuamua in 2017 and 2I/Borisov in 2019. Although its trajectory is too long and it has traveled too long to know which star it comes from.

But the important thing is that we are already preparing for what is coming. ESA’s JUICE mission, currently en route to Jupiter, will take new radio measurements from 3I/ATLAS in February 2026. But the big bet is the mission ESA Comet Interceptorwhich will be launched around 2029 and will wait for the next large comet to approach our planet.

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