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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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The Quantum Experiment that Broke Reality
10:27
The double slit experiment radically changed the way we understand reality.
The Origin of Matter and Time
9:21
Time to redefine our preconceived notions about mass and time.
The Future of Gravitational Waves
5:49
In 2015 LIGO announced the first detection of a gravitational wave... What happens next?
When Time Breaks Down
8:04
We learned how motion gives matter its mass, but how does motion affect time?
Juno to Reveal Jupiter's Violent Past
10:15
On July 4th 2016, the Juno spacecraft finally entered orbit around the planet Jupiter.
The True Nature of Matter and Mass
8:34
Are matter, mass, and time real?
Planck's Constant and The Origin of Quantum Mechanics
11:02
Planck's Length is the length below which the concept of length loses its meaning. Huh?
The Higgs Mechanism Explained
7:49
What is the Higgs field and why is it a fundamental part of our universe?
The Strange Universe of Gravitational Lensing
9:42
Contrary to how we perceive reality, spacetime is deflected through the lens of gravity
How to Build a Blackhole
10:58
Let’s build a black hole!
5 Ways to Stop a Killer Asteroid
8:31
Asteroids incoming!
Why Haven't We Found Alien Life?
10:33
Seems like Aliens SHOULD Be Out There!
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