(May 31, 2016 at 8:22 pm)Jehanne Wrote: A better explanation is that if ET exists, they would have to be emitting a very powerful radio wave via a directional antenna that was aimed directly at the Earth before we could detect them; problem, of course, is that we are a moving target, and so, ET would need to lead us by a small, but significant, fraction of a light year, but that would take knowing our exact position in space with respect to the Galaxy and where we were going.
You know, I've been interested in SETI since I read Sagan's books ages ago, and I didn't know that. So much for Fermi's paradox!
A Gemma is forever.
