Thread: Star Probe
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Old 4th Nov 2018, 21:04
  #8 (permalink)  
Loose rivets
Psychophysiological entity
 
Join Date: Jun 2001
Location: Tweet Rob_Benham Famous author. Well, slightly famous.
Age: 79
Posts: 4,669
using solar radiation to propel itself forward.
Which way is it going?

"cigar or needle" as this would “minimise friction and damage from interstellar gas and dust”......
Well, if anyone should know about the energy is such relative speeds (what else would they be but relative?) it is Professor Hawking. But flat, or needle sharp, I still don't want to run into average space particulate matter at anything over 10 thousand miles an hour, let alone .5 c.

Sending something to us? If you hold your arms out wide, and that's the galaxy, then how far have radio waves reached from Earth since we started transmitting? On that scale, about the size of a full stop/period on an A4/Letter page. Depressing isn't it? I hate being in a time prison.
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