A comet from another star system does not arrive every year. That is part of what made 3I/ATLAS so compelling when it ...
Scientists found no alien signals from interstellar comet 3I/ATLAS after a fresh 7-hour radio scan.
Radio silence has long puzzled those searching for extraterrestrial intelligence, but the answer might lie much closer to the source of potential signals than previously thought. Conditions around ...
Astronomers swept millions of candidates and found no alien signals from K2-18b, setting the first power limit on any ...