Do advanced civilizations know we're here?

UP8
Tue, 05 Sep 2023 01:14:00 +0000

Link URL: https://phys.org/news/2023-09-advanced-civilizations.html

Comments URL: https://tildes.net/~space/1a3a/do_advanced_civilizations_know_were_here

Votes: 28

Comments: 24