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PBS Space Time
What If Alien Life Were Silcon-Based?
Season 9
Episode 3
Life as we know it is carbon-based, but does it have to be this way? There’s another element on the periodic table that shares some of the key properties of carbon but is far more abundant on most planets. I’m talking about silicon. So is there silicon-based life out there?
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14:28
Nuclei are held together by a quirk of nature, without which there’d be nothing.

16:29
Your motion through the universe is extremely complicated, so let’s figure it out!

17:33
If you believe the Mathematical Universe Hypothesis then yes. And so are you.

15:32
Learn more about the time when the moon didn’t exist, and then hours later suddenly did.

15:19
We explore Supercritical Fluids and how being "in the between" is their superpower.

15:31
These are particles you may not even heard of!

12:53
We study the most bizarre known particles.

16:13
We explore if it's really possible that new elements exist beyond the periodic table.

15:30
Let’s see how if alien civilizations will ever reach us.

14:40
Quantum Entanglement reveals that the universe is stranger than we thought.

15:29
We explain how The Standard Model of particle physics works!

14:59
This is the craziest proposal for an astrophysics mission that has a chance at happening.