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No Dark Matter = Proof of Dark Matter?

No Dark Matter = Proof of Dark Matter?

Season 5 Episode 19
10:37
The Real Science of the EHT Black Hole

The Real Science of the EHT Black Hole

Season 5 Episode 20
11:07
The Cosmic Dark Ages

The Cosmic Dark Ages

Season 5 Episode 22
12:29
The Alchemy of Neutron Star Collisions

The Alchemy of Neutron Star Collisions

Season 5 Episode 23
11:24
How Black Holes Kill Galaxies

How Black Holes Kill Galaxies

Season 5 Episode 24
11:20
The Quantum Internet

The Quantum Internet

Season 5 Episode 26
11:35
Did Time Start at the Big Bang?

Did Time Start at the Big Bang?

Season 5 Episode 27
12:30
What Caused the Big Bang?

What Caused the Big Bang?

Season 5 Episode 28
13:12
What Happened Before the Big Bang?

What Happened Before the Big Bang?

Season 5 Episode 29
10:23
How To Become an Astrophysicist

How To Become an Astrophysicist

Season 5 Episode 30
12:45
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PBS Space Time

The Holographic Universe Explained

Season 5 Episode 18

We live in a universe with 3 dimensions of space and one of time. Up, down, left, right, forward, back, past, future. 3+1 dimensions. Or so our primitive Pleistocene-evolved brains find it useful to believe. And we cling to this intuition, even as physics shows us that this view of reality may be only a very narrow perception.

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Season
Will The Sun’s Magnetic Field Flip This Year?
16:11
Just how much stronger is this year’s solar activity going to get?
Is It Impossible To Cross The Event Horizon? | Black Hole Firewall Paradox
17:25
So you’ve decided to jump into a black hole...
What’s The Universe’s Strongest Particle Accelerator?
12:51
We only recently figured out where cosmic rays are coming from.
Can Black Holes Unify General Relativity & Quantum Mechanics?
13:28
Black hole complementarity may force us to rethink what it means to say that it exists.
Interstellar Expansion WITHOUT Faster Than Light Travel
20:15
To travel the stars without faster than light travel we’re going to need a generation ship.
What Happens If You Jump Into A Black Hole?
16:19
Today we are jumping into a black hole. Again.
Why Is The World Rushing Back To The Moon?
15:36
The Moon: humanity’s first destination beyond our atmosphere.
How Eclipses Revealed Our Solar System
15:07
So how did humans figure out the solar system? Eclipses!
What If Gravity is Not A Fundamental Force?
15:02
Is gravity just an emergent effect of entropy?
Does Space Emerge From A Holographic Boundary?
14:28
Is our 3-D universe is just the inward projection of an infinitely distant boundary?
Dark Forest: Should We Not Contact Aliens?
14:12
What if aliens are deliberately keeping quiet for fear that they might be destroyed?
What Happens If We Nuke Space?
15:13
So what exactly is an EMP, and how dangerous are they?
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