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Old 2021-01-18, 16:59   #59
Uncwilly
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Quote:
Originally Posted by firejuggler View Post
Ok... Space elevator?
No, because the tether is subject to erosion in the atmosphere. After it separates things go bad and the evidence goes away.
But a satellite in an orbit like the GPS system that is visible and shaped such that it is obviously artificial might be a good choice.
[edit]And if it is shaped and spun such that it would flash repeatedly when viewed from the ground, that would help. It would eventually slow down, but if it was very heavy, it would stay spinning for longer. Also, using a gravity gradient to keep it oriented would help.[/edit]

Last fiddled with by Uncwilly on 2021-01-18 at 17:34
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