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What If Gravity is Not Quantum? - The holy grail of theoretical physics is to come up with a quantum theory of gravity. But after a century of trying we really have no idea how close we are, or it it's even possible. But we shouldn't feel bad because it turns out that the universe is doing everything it its power to make this as difficult as possible. Or it's telling us that it isn't. Should we take the hint?
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The holy grail of physics is a quantum theory of gravity. What if it’s not possible?
Alien life will most likely be discovered by faint changes in the color of alien sunsets.
The 2023 Physics Nobel prize has been awarded to three physicists for attosecond physics.
With the James Webb Space Telescope we’ve now seen the earliest star ever detected.
Some are arguing that Many Worlds and Pilot Wave are really the same.
What if we could produce superconductivity at room temperature? It would change the world.
We may need to build a radio telescope in the quietest place nearby - the moon!
Spacetime on its smallest scale is an ocean of black holes and wormholes...or so we think.
Did JWST just find a new type of star powered by dark matter?
Did we just uncover new evidence to support Cold Dark Matter?
The gravitational wave background has probably been detected using a pulsar timing array.
Let’s explore how constant this speed of light fundamental constant really is.
Dark matter may be a quantum mechanical wave that literally holds galaxies together.
Has AI proven that the proton is made of 5 quarks rather than 3 quarks?
How close is too close for supernova explosions?
Could we turn our solar system into a spaceship and drive the Sun around the galaxy?
If we want to see quantum weirdness with our eyes, we’ll need Bose-Einstein Condensates.
Could LIGO find alien spacecraft accelerating to near light speed?
How can we tell the difference between fermions & bosons? Statistical Mechanics!
Why has a newly discovered a black hole started pointing directly at us?
There’s a hard limit to humanity’s expansion in the universe. So, how big can we get?
Let’s figure out the absolute limit of our future view of the universe!
Let see if Black Holes and Dark Energy are the same thing!
Physics is the business of figuring out the structure of the world. So are our brains.
Does the next level of physics require us to do away with space and time?
Nuclei are held together by a quirk of nature, without which there’d be nothing.
Your motion through the universe is extremely complicated, so let’s figure it out!
Could there silicon-based life beyond Earth?
If you believe the Mathematical Universe Hypothesis then yes. And so are you.
Learn more about the time when the moon didn’t exist, and then hours later suddenly did.
About PBS Space Time
PBS Space Time explores the outer reaches of space, the craziness of astrophysics, the possibilities of sci-fi, and anything else you can think of beyond Planet Earth. Host Matt O'Dowd breaks down the both the basic and incredibly complex sides of space and time.
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