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PBS Space Time

The Strange Universe of Gravitational Lensing

In the world of our mind’s eye, light travels in a straight line. In reality, spacetime is deflected and magnified through the lens of gravity. Find out how this works and what it allows us to learn about our universe in this episode of Space Time.

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Season
First Detection of Life
10:34
What does life look like from space?
Extraterrestrial Superstorms
10:49
There are many unsolved mysteries surrounding epic extraterrestrial superstorms.
The One-Electron Universe
9:11
Could it be that all the electrons are simply a single electron moving back and forth?
Dark Flow
12:29
Why does the universe seem to be moving in one particular direction?
The Secrets of Feynman Diagrams
12:05
Unlock the secrets of Feynman Diagrams. Part 5 in our Quantum Field Theory series.
The Real Star Wars
12:38
Anti-Satellite weaponry, giant X-ray lasers and kinetic impact missiles nicknamed the “Rod
Solving the Impossible in Quantum Field Theory
11:52
How do you calculate infinite quantum outcomes? Feynman Diagrams.
Feynman's Infinite Quantum Paths
11:39
There is a fundamental limit to the knowability of the universe.
The First Quantum Field Theory
12:15
Part 2 in our series on Quantum Field Theory.
Anti-Matter and Quantum Relativity
11:20
Part 1 in our series on Quantum Field Theory.
Supervoids vs Colliding Universes!
10:41
Could the mysterious Cold Spot found in the CMB be the result of a collision with a bubble
The Fate of the First Stars
10:47
Population III stars were the very first stars in our universe
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