Ice, Snow and Space

What exoeriments can be doen with snow? why is snow white yet ice is clear? How can ice be made without refridgeration? And how do Jet engines work out in space? We tackle these questions in this week's show. We also find out about the ares-V rocket being built by NASA, investigate why underarm hair hasn't been lost through evolution and reveal how someones smell could reveal if they're your perfect match.