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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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20:39
We may need to build a radio telescope in the quietest place nearby - the moon!

14:59
Spacetime on its smallest scale is an ocean of black holes and wormholes...or so we think.

11:49
Did JWST just find a new type of star powered by dark matter?

16:21
Did we just uncover new evidence to support Cold Dark Matter?

15:51
The gravitational wave background has probably been detected using a pulsar timing array.

15:05
Let’s explore how constant this speed of light fundamental constant really is.

14:39
Dark matter may be a quantum mechanical wave that literally holds galaxies together.

16:24
Has AI proven that the proton is made of 5 quarks rather than 3 quarks?

15:16
How close is too close for supernova explosions?

12:14
Could we turn our solar system into a spaceship and drive the Sun around the galaxy?

16:00
If we want to see quantum weirdness with our eyes, we’ll need Bose-Einstein Condensates.

16:42
Could LIGO find alien spacecraft accelerating to near light speed?