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Do Astronauts Need Sunscreen?
Season 5
Episode 39
How do astronauts survive the deadly radiation of deep space? NASA is still figuring out how to protect astronauts from cosmic radiation -- like plastic shielding and magnetic deflectors.
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4:32
White, Green, Black, and Oolong Tea: What's the Difference?
4:13
There are thousands of species of birds and with great numbers come great biodiversity.
4:59
Let's honor women’s history month in the international year of the periodic table.
4:35
Did you realize that here on Earth, there are endangered elements too?
8:15
We get up close and personal with the chemistry of your bathroom's most magical soap.
3:32
Flamingos Are Pink and one of the most hardcore animals on the planet.
