Comments on: Aliens likely haven’t visited because humanity’s technological signature is very limited

Comments on: Aliens likely haven’t visited because humanity’s technological signature is very limited https://lifeboat.com/blog/2022/12/aliens-likely-havent-visited-because-humanitys-technological-signature-is-very-limited Safeguarding Humanity Fri, 16 Dec 2022 19:29:25 +0000 hourly 1 https://wordpress.org/?v=6.6.1