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This Could Change the Future of Space Travel

A lot of extremely smart and dedicated people pushed engineering and chemistry to the limits in order to create a 36-story tower of carefully-controlled space fire powerful enough to escape Earth’s gravity. I went to NASA in Houston to talk to astronaut Don Pettit about how they did it, and if we’ll be able to do it again.
Season 7 Episode 30 Length 11:30 Premiere: 12/30/19

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Specials

Season 7 Episodes

Could You Be a Chimera? (ASL)
S7 E31 Length 09:43 Premiere Date 06/21/19

This Could Change the Future of Space Travel
S7 E30 Length 11:30 Premiere Date 12/30/19

The Strange (Unexpected) Reason Ice is Slippery
S7 E29 Length 07:20 Premiere Date 12/17/19

Recycling Is Broken. Here’s How We Can Fix It.
S7 E28 Length 11:11 Premiere Date 12/10/19

I Tried Eating Bugs… Here's What I Learned
S7 E27 Length 14:55 Premiere Date 11/23/19

Evolution Fails in the Human Body
S7 E26 Length 11:53 Premiere Date 11/19/19

This Face Changes the Human Story
S7 E25 Length 13:11 Premiere Date 10/21/19

What If We Could See Nature In Infrared?
S7 E24 Length 08:51 Premiere Date 10/25/19

What Color Is A Banana?
S7 E23 Length 08:46 Premiere Date 11/09/19

What’s In a 20,000 Year-Old Cube of Ice?
S7 E22 Length 11:20 Premiere Date 10/07/19

The History of Money (From Barter To Bitcoin)
S7 E21 Length 09:36 Premiere Date 09/29/19

7 Scientific Urban Legends Debunked!
S7 E20 Length 11:24 Premiere Date 09/06/19

Why Don't Birds Lay Square Eggs?
S7 E19 Length 07:21 Premiere Date 08/19/19

How Blind People See With Sound
S7 E18 Length 16:07 Premiere Date 08/11/19

Why do Trees Talk to Each Other?
S7 E17 Length 05:27 Premiere Date 07/27/19

Why We Are Losing the Night Sky
S7 E16 Length 10:26 Premiere Date 07/14/19

Apollo’s Most Important Discovery: NASA’s Moon Rock Vault
S7 E15 Length 10:25 Premiere Date 07/09/19

Could You Be a Chimera?
S7 E14 Length 09:43 Premiere Date 06/21/19

Using Gene Editing To Repaint Butterfly Wings
S7 E13 Length 11:12 Premiere Date 06/18/19

1 MILLION Species Could Go Extinct… Here’s Why.
S7 E11 Length 05:55 Premiere Date 05/24/19

Is Your Eye Color Real?
S7 E10 Length 05:37 Premiere Date 05/18/19

How to Drink Coffee In Space
S7 E9 Length 10:30 Premiere Date 05/03/19

Why Getting Dizzy is Kinda Like Temporary Brain Damage
S7 E8 Length 08:35 Premiere Date 04/26/19

Unraveling the Great Butterfly Migration Mystery
S7 E7 Length 09:12 Premiere Date 04/09/19

How to be Crushed by the Atmosphere!
S7 E6 Length 06:56 Premiere Date 04/02/19

Why Are So Many People Allergic To Food?
S7 E5 Length 10:47 Premiere Date 03/20/19

Where On Earth Do You Weigh The Least?
S7 E4 Length 07:13 Premiere Date 03/05/19

Are You Afraid of Holes?
S7 E3 Length 05:51 Premiere Date 02/27/19

The Impossible Hugeness of Deep Time
S7 E2 Length 09:05 Premiere Date 02/12/19

Is There Life on Earth?
S7 E1 Length 09:44 Premiere Date 02/07/19

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