Life on Other Planets Geek Out

Could there be life on other planets? Time for a Geek Out! Richard chats with Carl about Fermi's Paradox, Drake's Equation and all the latest science we've gathered around how common life is on other planetary bodies. This does lead to a discussion about what makes a planet a planet in the first place - that definition is changing and being heavily debated. And as for intelligent life... well, that's a whole other problem!

Episode source