Why is the sky blue? It's a question that you'd think kids have been asking for thousands of years, but it might not be that old at all. The ancient Greek poet Homer never used a word for blue in The Odyssey or The Iliad, because blue is one of the last colors that cultures pick out a word for.

 


In this episode, I'll tell you not only why the sky is blue, but why it's red at sunset. It turns out, those colors are all part of the same sunbeam. And when you're looking at a blue sky, you could be sharing a special moment with someone thousands of miles away. Next time a kid (or the kid inside you) wants to know why the sky is blue, you'll have science to back you up!

(We know that the Earth turns the wrong direction in the animation, sorry about that. Something weird happened when we were programming the animation and it got reversed. Or maybe time travel!)

References for this episode: http://dft.ba/-4Wus

Tweet at me: @jtotheizzoe
Email me: itsokaytobesmart [at] gmail [dot] com
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For more awesome science, check out: http://www.itsokaytobesmart.com

Written and hosted by Joe Hanson
Produced by Painted On Productions (http://www.paintedon.com/)
Special thanks to Laura Eakins from UT-Austin's Department of Astronomy

Written and hosted by Joe Hanson
Produced by Painted On Productions (http://www.paintedon.com/)

Music:
Johnny Ripper "Speak (with Ekoda)"
Kansas Bible Company "Hang Niner"

Clips used:
"Nature - Time 4 Timelapse" - http://vimeo.com/39145634
"Far and Wide" - http://vimeo.com/27027505