Space shared the following link and had this to say about it: When it comes to detecting laser pulses aliens might shoot at Earth to attract our attention, scientists now find they can detect signals as faint as a single photon of light every few tiny fractions of a second. oak.ctx.ly/r/acjw Lasers can in principle help transmit messages over extraordinary distances, but while scientists have monitore...
Posted on: Thu, 22 Aug 2013 00:06:32 +0000