Is Gravity RANDOM Not Quantum? - The holy grail of theoretical physics is to find the long-sought theory of quantum gravity. But what if this theory is as mythical as the grail of legend? What if gravity isn’t weirdly quantum at all, but rather … just a bit messy? Or random? So says the postquantum gravity hypothesis of Jonathan Oppenheim.
What if gravity isn’t weirdly quantum at all, but rather … just a bit messy?
Have we reached the end of the line of discoverable elements?
Can we change the color of a black hole?
Learn about Nobel laureate Roger Penrose's idea of how consciousness is caused by quantum processes.
Faster than light travel may produce gravitational waves that we could see here on Earth.
All particles belong to two large groups: fermions and bosons.
Just how much stronger is this year’s solar activity going to get?
So you’ve decided to jump into a black hole...
We only recently figured out where cosmic rays are coming from.
Black hole complementarity may force us to rethink what it means to say that it exists.
To travel the stars without faster than light travel we’re going to need a generation ship.
Today we are jumping into a black hole. Again.
The Moon: humanity’s first destination beyond our atmosphere.
So how did humans figure out the solar system? Eclipses!
Is gravity just an emergent effect of entropy?
Is our 3-D universe is just the inward projection of an infinitely distant boundary?
What if aliens are deliberately keeping quiet for fear that they might be destroyed?
So what exactly is an EMP, and how dangerous are they?
The terrible singularity at the heart of the black hole may be no more.
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 both the basic and incredibly complex sides of space and time.
