John Green reviews Halley's Comet, a celestial body visible from Earth once in a lifetime, and cholera, an infection caused by bacteria and people. Thanks to audible for sponsoring today's episode: http://audible.com/anthro
First Things
ABC listen
The Ringer
Steve Dolinsky
Lynn Barron, Bleav
support@livingcompassion.org (Cheri Huber)
Lance Roberts
Tagesschau
Sagar kumar
gmaniac
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