Mar 2, 2019 — The Goodness Paradox, secrets in poop, converting carbon to coal and more...

Countdown to the moon landing, selecting hygienic bees and a question of cow methane

A fully functioning solid gold toilet, made by Italian artist Maurizio Cattelan, at the Guggenheim Museum in New York. (William Edwards/AFP/Getty Images)

Listen to the full episode53:59