How many alien civilizations are there? Using the Drake Equation, we can find out. Do you love equations? Visit https://brilliant.org/astrum to sample their courses for free, and the first 200 of you will get 20% off Brilliant’s annual premium subscription.
Astrum merch now available!
Metal Posters: https://displate.com/promo/astrum?art=5f04759ac338b
SUBSCRIBE for more videos about our other planets.
Astrum Spanish: https://bit.ly/2KmkssR
Astrum Portuguese: https://www.youtube.com/channel/UChn_-OwvV63mr1yeUGvH-BQ
Ethereum Wallet: 0x5F8cf793962ae8Df4Cba017E7A6159a104744038
Become a Patron today and support my channel! Donate link above. I can’t do it without you. Thanks to those who have supported so far!
#drakeequation #astrum #aliens
astrobiology what is the drake equation drake equation carl sagan