Skip to main content

Up Next

How to Signal Aliens

How to Signal Aliens

Season 1 Episode 18
6:14
Can a Circle Be a Straight Line?

Can a Circle Be a Straight Line?

Season 1 Episode 20
8:16
The Leap Second Explained

The Leap Second Explained

Season 1 Episode 21
2:20
Can You Trust Your Eyes in Spacetime?

Can You Trust Your Eyes in Spacetime?

Season 1 Episode 22
9:23
Do Events Inside Black Holes Happen?

Do Events Inside Black Holes Happen?

Season 1 Episode 25
11:50
What if Singularities DO NOT Exist?

What if Singularities DO NOT Exist?

Season 10 Episode 1
14:44
What Happens If We Nuke Space?

What Happens If We Nuke Space?

Season 10 Episode 2
15:13
Back to Show
PBS Space Time

Is Gravity An Illusion?

Season 1 Episode 17

Most of us take gravity as an assumed part of our living realities, but why? Basic physics introduces us to the concept of gravity from a Newtonian sense, but when you start factoring Einstein into an understanding of gravity, things get… weird. For example, gravity may simply not exist. Why? Watch this week’s episode of PBS Space Time and find out why gravity may be an illusion!

Support Provided By
Season
What If the Galactic Habitable Zone Limits Intelligent Life?
14:48
The effect of inhabitable space in the galaxy may be why we haven't seen aliens.
Space Does Not Expand Everywhere
13:51
Let's push Space's boundaries to the limit.
How the Higgs Mechanism Give Things Mass
17:26
We work to understand why W boson particle mass is so important.
Does the Universe Create Itself?
13:46
The universe may be playing a reoccurring game of guess.
Could The Universe Be Inside A Black Hole?
12:47
We look into what is inside a black hole.
Where Is The Center of The Universe?
14:21
We ask and explore If the universe has a center and where it could be.
What If Charge is Not Fundamental?
13:47
We explore and challenge electric charge's fundamental property and if it sticks.
Is the Proxima System Our Best Hope For Another Earth?
15:33
Recent discovery of Proxima Centauri has reopened talks of our best chance of Earth 2.0.
Are Cosmic Strings Cracks in the Universe?
15:41
Cosmic strings could be the most most bizarre undiscovered entities to actually exist.
Is The Wave Function The Building Block of Reality?
13:31
We explore Objective Collapse Theories in a down to earth objective way.
How Does Gravity Escape A Black Hole?
12:36
We explore how a black hole manages to communicate its gravitational force.
How To Build The Universe in a Computer
12:26
We explore the possibility of building a universe and all the limitations it presents.
Active loading indicator