gollum.space
RU
Space travel, Fermi paradox
05-January-2019 Saturday
Why has mankind not found any traces of an alien civilization?
Abat15
Read
2 more images
Why has mankind not found any traces of an alien civilization?
Aliens
Colonization
Space travel
Fermi paradox
02-December-2013 Monday
Intergalactic travel drastically complicates the Fermi Paradox
GrinGoPsixoPat
Read
Universe
Space travel
Fermi paradox
v20240901