Comment on Powerful Radio Signal from Deep SpaceparentComments−Tepix6yIt could be considered a clue check. If you're unable to recognize and decode the signal, you failed the test.−zh36yBack in the days before radio, peple searched for life on the moon by using telescopes to look for signal fires.
Comments
It could be considered a clue check. If you're unable to recognize and decode the signal, you failed the test.
Back in the days before radio, peple searched for life on the moon by using telescopes to look for signal fires.