Arecibo Observatory: Watching for Asteroids, Waiting for E.T.
Monday, May 6, 2013 - 16:30
in Astronomy & Space
Arecibo Observatory has been used to send a SETI message as well as for scanning the skies for approaching asteroids.
Arecibo Observatory has been used to send a SETI message as well as for scanning the skies for approaching asteroids.