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Hello OA!
#19
(02-12-2020, 02:28 PM)Drashner1 Wrote: That said, there are a few extinct species that vanished/died out less than 10 million years ago:

One thing that might help from an archeological standpoint is that the remains of most of these civilizations are likely found as artifacts in space - an environment which is probably very good at preserving many things for a very long time. No weather, no animals or plants, no climate or geological shifts to destroy things.

Todd

Thanks for the links, haven't read at least one of them.

If the civilization has reached space - then great, but for every spacefaring civilization how many have remained on their own planet? And if they chose some other path of development, we may not recognize their artifacts as artificial at all!
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Messages In This Thread
Hello OA! - by Jargal - 02-10-2020, 08:28 PM
RE: Hello OA! - by MacGregor - 02-10-2020, 10:13 PM
RE: Hello OA! - by Drashner1 - 02-11-2020, 12:00 AM
RE: Hello OA! - by Jargal - 02-11-2020, 06:50 PM
RE: Hello OA! - by Jargal - 02-11-2020, 01:07 AM
RE: Hello OA! - by Drashner1 - 02-12-2020, 02:28 PM
RE: Hello OA! - by Jargal - 02-12-2020, 06:57 PM
RE: Hello OA! - by Drashner1 - 02-13-2020, 12:39 PM
RE: Hello OA! - by Rynn - 02-11-2020, 02:17 AM
RE: Hello OA! - by stevebowers - 02-11-2020, 03:34 AM
RE: Hello OA! - by Jargal - 02-11-2020, 03:12 AM
RE: Hello OA! - by Madine - 02-11-2020, 03:13 AM
RE: Hello OA! - by Jargal - 02-11-2020, 03:30 AM
RE: Hello OA! - by Jargal - 02-11-2020, 03:49 AM
RE: Hello OA! - by Drashner1 - 02-11-2020, 04:12 AM
RE: Hello OA! - by Jargal - 02-11-2020, 04:25 AM
RE: Hello OA! - by Drashner1 - 02-11-2020, 11:24 AM
RE: Hello OA! - by stevebowers - 02-11-2020, 07:20 AM
RE: Hello OA! - by The Astronomer - 02-11-2020, 02:47 PM
RE: Hello OA! - by Worldtree - 02-11-2020, 07:32 PM

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