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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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12:26
We explore the possibility of building a universe and all the limitations it presents.

14:14
Let’s learn how to cheat the universe.

14:28
Time to update you on the hunt for galactic empires.

13:29
This is what happens if microscopic primordial black holes could actually hit Earth.

14:07
Black holes of string theory - fuzzballs - are perhaps even weirder than the regular type.

14:28
We learn more about Modified Newtonian Dynamics aka MOND.

14:28
ACTION is the concept in physics that may be more fundamental than energy and entropy.

11:41
Constructor Theory is the ability to see the deepest underlying facts about the world.

13:00
New efforts in quantum tunneling show that superluminal motion may be possible.

14:15
The idea of magnetic monopoles remains one of physics’ most tantalizing maybes.

15:10
The fact is that all electrons are the same as each other and the object is what changes.

14:14
We take a journey to the center of a neutron star, a place where matter exists in states.