Skip to main content

Up Next

Mapping the Multiverse

Mapping the Multiverse

Season 6 Episode 16
14:21
Does Gravity Require Extra Dimensions?

Does Gravity Require Extra Dimensions?

Season 6 Episode 17
12:41
Can Viruses Travel Between Planets?

Can Viruses Travel Between Planets?

Season 6 Episode 18
13:58
What Happens After the Universe Ends?

What Happens After the Universe Ends?

Season 6 Episode 19
14:34
Building Black Holes in a Lab

Building Black Holes in a Lab

Season 6 Episode 20
13:12
Dissolving an Event Horizon

Dissolving an Event Horizon

Season 6 Episode 21
11:32
How Stars Destroy Each Other

How Stars Destroy Each Other

Season 6 Episode 24
10:41
How Do We Know What Stars Are Made Of?

How Do We Know What Stars Are Made Of?

Season 6 Episode 26
11:13
Back to Show
PBS Space Time

How We Know The Universe is Ancient

Season 6 Episode 14

The universe is precisely 13.8 billion year old - or so our best scientific methods tell us. But how do you learn the age of the universe when there’s no trace left of its beginnings?

Support Provided By
Season
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?
What if Singularities DO NOT Exist?
14:44
The terrible singularity at the heart of the black hole may be no more.
Did JWST Solve The Mystery of Supermassive Black Hole Origin
14:33
We may have solved the mysterious origins of supermassive black holes in our universe.
Does Antimatter Create Anti-Gravity?
16:30
Does antimatter fall down, or does it fall up?
Can The Crisis in Cosmology Be Solved With Cosmic Voids?
14:29
Could cosmic voids be driving the universe?
What If There's A Black Hole Inside The Sun?
17:53
Is there a black hole hiding in the core of the Sun eating it from the inside out?
What if Humans Are Not Earth's First Civilization?
19:19
What if we aren't the first technological civilization on Earth?
Does Many Worlds Explain Quantum Probabilities?
19:03
Many World’s lack wavefunction collapse might be the key to the measurement problem.
What If Gravity is Not Quantum?
18:32
The holy grail of physics is a quantum theory of gravity. What if it’s not possible?
How Will We (Most Likely) Discover Alien Life?
18:32
Alien life will most likely be discovered by faint changes in the color of alien sunsets.
Active loading indicator