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Reactions is a show that uncovers the chemistry all around us. We answer the burning questions you’ve always wanted to ask, blending the worlds of science and every-day life.

Watch • 8:46
Reactions
Is Water Magnetic?
Is water bending real?
Episode: S11 E10 | 8:46
Watch • 11:15
Reactions
Liquid Marbles are the Coolest Scientific Breakthrough I've Made (So Far)
George tries to make a new discovery in a huge field of science... and he might have.
Episode: S11 E9 | 11:15
Watch • 12:00
Reactions
Exposing Fake Honey Using Carbon-13
This week Alex takes to the lab and investigates the stable isotopes in 20 different honeys.
Episode: S11 E8 | 12:00
Watch • 8:19
Eons
Crawling Out Of The Water Was An Evolutionary Accident
Fish evolved terrestrial traits to...stay fish?
Episode: S8 E4 | 8:19
Watch • 1:24:23
FRONTLINE
The Rise of Germany's New Right
An investigation into how far-right leaders in Germany have risen to the brink of power.
Episode: S2025 E13 | 1:24:23
Watch • 12:07
Eons
Do Chins Make Us Human?
We're the only ones with chins, and we don't know why.
Episode: S8 E3 | 12:07
Watch • 19:14
PBS Space Time
Why Life on Mars Will Doom Humanity
Life on mars could result in humanity’s destruction via Fermi Paradox.
Episode: S11 E13 | 19:14
Watch • 16:18
PBS Space Time
Is There a Simple Proof For a Vast Multiverse?
Is there evidence for the existence of an enormous number of other universes?
Episode: S11 E10 | 16:18
Watch • 53:14
Austin City Limits
Austin City Limits Hall of Fame Honors My Morning Jacket
My Morning Jacket are inducted into the ACL Hall of Fame by Cameron Crowe in an epic hour.
Episode: S51 E5103 | 53:14