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Harvard astronomer Avi Loeb has long suggested that there's a chance 'Oumuamua, a mysterious object that visited our solar system back in 2017, may have been an alien spacecraft that came by for a visit.
In a 2021 paper, Loeb argued that 'Oumuamua could have been a probe sent by an extraterrestrial civilization, an explanation that has proven divisive among his peers.
Most recently, an international team of researchers attempted to dismantle a core aspect of Loeb's argument: that 'Oumuamua was a solar sail, an advanced form of propulsion that would allow a spacecraft to use the low pressure of solar radiation to move through space...
...Loeb, however, isn't having it. He's sticking to his guns.
"There are a few points that the authors have overlooked," he told The Daily Beast this week...
..."If it was a light sail, the brightness variation should be much larger," Shangfei told Beast.
Loeb, however, argues that the sail itself "need not be flat." According to his own research, it could've been a light sail of a different shape, reflecting light in unexpected ways.
The astronomer went as far as to suggest to Beast that 'Oumuamua "may not be a sail at all, but just a surface layer torn apart from a bigger object" — in other words, a piece of alien spacecraft detritus that just happened to hurtle through our star system...
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