Bill Nye Saves the World

Season 2, Episode 6: How to Travel Through Time

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Bill breaks down the science of time travel with guests Zach Braff, retired astronaut Scott Kelly and the minds behind "Star Trek" and "Lost."

All Episodes - Season 2

The Marijuana Episode
Episode 1
The Marijuana Episode
 Your Computer Is Under Attack
Episode 2
Your Computer Is Under Attack
 We Suck at Sleeping
Episode 3
We Suck at Sleeping
 Sex, Drugs and Superbugs
Episode 4
Sex, Drugs and Superbugs
 Extinction: Why All Our Friends Are Dying
Episode 5
Extinction: Why All Our Friends Are Dying
 How to Travel Through Time
Episode 6
How to Travel Through Time
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