2 Feb
2011
2 Feb
'11
5:44 p.m.
I believe the answer to that question is 42. Bob -----Original Message----- From: utah-astronomy-bounces@mailman.xmission.com [mailto:utah-astronomy-bounces@mailman.xmission.com] On Behalf Of erikhansen@thebluezone.net Sent: Wednesday, February 02, 2011 4:05 PM To: Utah Astronomy Subject: Re: [Utah-astronomy] Kepler Gone Wild Then we get to Sagan's question about how many civilizations destroyed themselves before becoming advanced enough for space travel. Erik