Why Haven't We Found Alien Life - PBS Space Time

PBS' Space Time explores the Fermi Paradox, the anthropic principle and others in an attempt to explore why we haven't seen signs of alien life yet.

Load Comments...

Send this Article to a Friend

Separate multiple emails with a comma (,); limit 5 recipients

Your email has been sent successfully!

Manage this Video in Your Playlists

notify when someone comments

This website uses cookies.

This website uses cookies to improve user experience. By using this website you consent to all cookies in accordance with our Privacy Policy.

I agree
Learn More