An international team of researchers pointed the largest single-dish radio telescope in the world at 3I/ATLAS.
It is unclear whether a [3I/ATLAS] would transmit radio signals … such signals would take tens of thousands of years to cross ...
Harvard astrophysicist Avi Loeb is one of the biggest proponents of the theory that the comet was sent by an alien ...
Researchers used the Green Bank Telescope to study the interstellar comet and found that it exhibits typical cometary behavior, with no unusual features detected ...
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Alien signals, real comet: What 3I/ATLAS revealed

About 470,000 “interesting” radio hits can still add up to zero. That was the practical outcome when astronomers aimed one of ...