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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
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.

12:21
Our cleverest astronomers have figured out ways to catch light that skims black holes.

13:01
Of all the possible ends of the universe, vacuum decay would be the most thorough.

13:43
It may very well be possible to communicate between worlds.

14:30
A newly discovered white dwarf may change our understanding of all cosmology.

13:26
We explore the range and distance magnetism can take us.