Can we Reproduce in Space?

What's the radiation dose for trips to Mars? Is dental amalgam dangerous? Why do trees drop their leaves in winter?

31 May 2013

Presented by Chris Smith.

Ed_White_with_Space_Gun_maneuvering_unit.jpg

This photograph was taken early in the EVA over a cloud-covered Pacific Ocean. Astronaut Edward H. White II, pilot for the Gemini-Titan 4 space flight, floats in zero gravity of space. The extravehicular activity was performed during the third...

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How much radiation would an astronaut encounter on the way to Mars? What causes loss of appetite during a fever? Why does camera red eye happen? Can we reproduce in space? Is mercury in dental fillings safe? How old are the atoms in the body? What causes tides? What's the point of male nipples? Why do trees lose leaves in winter?