Spacedock touches on the dubious use of Helium-3 in various works of Science Fiction. #SciFi #Sciencefiction #science #shorts #youtubeshorts #forallmankind #education #fusion #memes THE SOJOURN - AN ORIGINAL SCI-FI AUDIO DRAMA: https://www.thesojournaudiodrama.com/ BECOME A CHANNEL MEMBER: ...

In this week's questions and answers show, I explain why people might see extraterrestrials as a threat. What could we learn about astronomy if we lived at the center of a supervoid, and how far away are we from the Big Bang? 00:00 Start 01:10 Why do we assume extraterrestrials are evil? 07:40 ...