The Fermi Paradox: There should be 100,000 intelligent alien civilizations in our galaxy — so why haven't we found any of them?
Save highlights in Reader View or with our Chrome extension.
This your link? Claim it
Every day we pick 7 links from around the web for you, tailored to your interests.
Or use Twitter, Facebook, Google
Have an account? Sign in
Not on Refind yet? Sign up