Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here:
You can learn more about CuriosityStream at
The silence of the galaxy and the resulting Fermi Paradox has perplexed us for nearly 50 years. But our most recent surveys of the Milky Way finally allow us to draw scientific conclusions about the depressingly persistent absence of aliens.
You can further support us on Patreon at
Get your own Space Time tÂ-shirt at
Tweet at us! @pbsspacetime
Facebook:
Email us! pbsspacetime [at] gmail [dot] com
Comment on Reddit:
Help translate our videos!
Previous Episode:
What are the Strings in String Theory?
Hoste