Astronomersfrom McGill University in Canada and theIndian Institute of Science(IISc) in Bengaluru have used data from the Giant Metrewave Radio Telescope (GMRT) in Pune to detect a radio signal originating fromatomic hydrogenin an
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The astronomical distance over which the signal was picked up is so far the farthest. This is also the first confirmed detection of strong lensing of 21 cm emission from a galaxy.