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Extinction by Gamma-Ray Burst

Extinction by Gamma-Ray Burst

Season 4 Episode 7
9:48
What Do Stars Sound Like?

What Do Stars Sound Like?

Season 4 Episode 8
9:14
Horizon Radiation

Horizon Radiation

Season 4 Episode 9
12:03
The End of the Habitable Zone

The End of the Habitable Zone

Season 4 Episode 10
9:55
Kronos: Devourer Of Worlds

Kronos: Devourer Of Worlds

Season 4 Episode 11
7:42
What is Energy?

What is Energy?

Season 4 Episode 12
11:20
The Death of the Sun

The Death of the Sun

Season 4 Episode 13
9:01
The Trebuchet Challenge

The Trebuchet Challenge

Season 4 Episode 14
8:25
Should Space be Privatized?

Should Space be Privatized?

Season 4 Episode 15
9:16
Hawking Radiation

Hawking Radiation

Season 4 Episode 16
12:00
The Andromeda-Milky Way Collision

The Andromeda-Milky Way Collision

Season 4 Episode 18
9:15
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PBS Space Time

The Origin of Our First Interstellar Visitor

Season 4 Episode 6

We were recently visited by a traveler from outside our solar system. This is the first time we’ve ever seen an object that came to us from interstellar space. It's name is 'Oumuamua.

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Season
How Astrophysics Can Literally Save the World
17:23
How is it possible to tell if a space rock will one day collide with the Earth?
Your DNA's Codes Are (Probably) From Outer Space
15:58
Did you know that many of us have up to 4% neanderthal DNA?
Will The Big Bang Happen Again (and Again)?
16:35
What if the Big Bang was just an endless cycle?
The Final Barrier to (Nearly) Infinite Energy
19:39
Why are billions suddenly being pumped into fusion startups?
The Crisis in Physics: Why the Higgs Boson Should Not Exist!
16:36
The universe should've collapsed after the Big Bang, but a light Higgs boson let us exist.
Does Timescapes Disprove Dark Energy?
14:30
Maybe dark energy doesn't exist?
How Many Black Holes Are In The Solar System?
18:32
Dark matter has eluded us for many decades but we may be able to discover more now.
Does Infinity - Infinity = an Electron
15:35
What do you get if you combine something that’s infinitely massive and negative infinitely massive?
What Does An Electron Actually Look Like?
13:39
What does an electron really look like?
The NEW Ultimate Energy Limit of the Universe
16:35
Is there a limit to how much energy you can cram into, or pull out of one patch of space?
Does the Planck Length Break E=MC^2?
17:19
I’d like to invite you to an even higher level of nerdom!
Can the Universe Remember? Exploring Gravitational Memory
11:43
Gravitational tsunamis exist and we’re on the verge of being able to detect them.
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