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All sky laser seti
#7
(08-17-2017, 07:31 PM)stevebowers Wrote: That's right. A laser message, or any kind of collimated(focused) beam, would be just about invisible to anyone not at the intended target. There are two possible reasons that we could pick up a signal - firstly, if the aliens deliberately try to target us with a message; they might periodically send messages to a list of target stars.  Alternately we might be lucky and get in the beam of a message not intended for us. The most likely reason for this could be that they are targeting a ship which is already in our system, or a monitoring station that has been here since time immemorial.

Or more likely backscatter from interstellar dust and other objects, or dispersed beams that passed their target long ago.
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Messages In This Thread
All sky laser seti - by tmazanec1 - 07-15-2017, 05:46 AM
RE: All sky laser seti - by tmazanec1 - 08-17-2017, 07:02 AM
RE: All sky laser seti - by Drashner1 - 08-17-2017, 12:49 PM
RE: All sky laser seti - by AmrlKJaneway - 08-17-2017, 04:09 PM
RE: All sky laser seti - by stevebowers - 08-17-2017, 07:31 PM
RE: All sky laser seti - by Rynn - 08-17-2017, 11:54 PM
RE: All sky laser seti - by selden - 08-17-2017, 08:32 PM

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