Raumfahrt+Astronomie-Blog von CENAP - Blog: Astronomie - Alien hunters should search for artifacts on the moon, study suggests

Freitag, 16. April 2021 - 07:02

16.04.2021

Artifacts last longer than signals and may be cheaper for alien civilizations to send out.

tmbzhrhhgrqvuhwozkgaad-970-80

sc-a

sc-aa

sc-ab

sc-ac

Quelle: SC

1067 Views