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It's Okay to Be Smart
How Big is the Solar System?
Season 2
Episode 1
I took a trip to one of Austin's famous moontowers so I could put the enormity of our solar system into perspective. With the help of a grapefruit, and a lot of walking, you'll get an idea of just how tiny everything is out there!!
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11:30
I went to NASA in Houston to talk to astronaut Don Pettit.
7:20
Why is ice slippery? It's a more complicated answer than it seems!
11:53
Here’s a rundown of a few of the human body’s biggest evolutionary fails!
8:51
Why are trees and other plants green? The answer is full of surprises.
11:24
I look at a few of the most famous incorrect factoids in science.
