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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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11:57
Alex made some kidney stones at home and tested prevention methods to keep them at bay.
10:38
An email from a subscriber made us question everything we thought we knew about trees.
21:33
The 15 ways that color happens. It's all about the electrons. Well, almost.
12:07
This element powers glow in the dark exit signs, keychains, and costs $30,000 per gram.
9:53
Scientific fraud rocked the Alzheimer’s research community. Did it help point to a cure?
12:54
Alex Dainis explores whether or not your milk needs to be pasteurized. Yes, it really does.
14:04
George tests a revolutionary new way to stick stuff together.
12:02
Sometimes the difference between life-saving drug and deadly side effect is chirality.
17:23
What happens when you eat morel mushrooms.
10:31
WARNING: this video contains incredible macro footage of supercooled water droplets nucleating ice.
13:12
Let’s dive into the science behind ocean alkalinization!
16:56
Discover why curdled milk is the key to the best cocktail you’ll ever taste.