That’s the signal, originating 11 and a half billion miles away from Earth, of Voyager 1. Way too small for any terrestrial optical telescope to see, but radio telescopes pick it up fairly loud and clear.
42 posted on 12/02/2017 5:55:54 PM PST by Ciaphas Cain
(I don't give a damn about your feelings. Try to impress me with your convictions.)