PBS
How Many States Of Matter Are There?
Let’s talk about states of matter. You know your states of matter don’t you? We have solids, liquids and gasses, and plasmas, quark-gluon plasmas, nuclear matter, bose-einstein condensates, neutronium, time crystals, and sand. Come to...
PBS
Why String Theory is Right
Some see string theory as the one great hope for a theory of everything - that it will unite quantum mechanics and gravity and so unify all of physics into one glorious theory.
PBS
What Survives Inside A Black Hole?
Black holes are the result of absolute gravitational collapse of a massive body: a point of hypothetical infinite density surrounded by an event horizon. At that horizon time is frozen and the fabric of space itself cascades inwards at...
PBS
Horizon Radiation
Learn about Horizon radiation and why it's essential for us to understand as we continue our journey towards the Unruh Effect and Hawking Radiation.
PBS
The Geometry of Causality
Using geometry we can not only understand, but visualize how causality dictates the order of events in our universe.
PBS
Quantum Gravity and the Hardest Problem in Physics
Between them, general relativity and quantum mechanics seem to describe all of observable reality.
PBS
The Phantom Singularity
Isaac Newton's Universal Law of Gravitation tells us that there is a singularity to be found within a black hole, but scientists and mathematicians have found a number of issues with Newton's equations. They don't always accurately...
PBS
The One-Electron Universe
Could it be that all the electrons in the universe are simply one, single electron moving back and forth through time?
PBS
The Nature of Nothing
It turns out that "nothing" is one of the most interesting somethings in all of physics.
PBS
The Unruh Effect
Worried about black holes? Consider this: Every time you accelerate - you generate an event horizon behind you. The more you accelerate away from it the closer it gets. Don't worry, it can never catch up to you, but the Unruh radiation...
PBS
Is There a Fifth Fundamental Force? + Quantum Eraser Answer
Has a fifth fundamental force been discovered and how will this effect our understanding of the universe?
PBS
How Will the Universe End?
We live in an unusual age - the age when the stars still shine. We should count ourselves lucky - nearly all of future history will be dark. But events will still unfold in that long, cooling darkness, and civilizations may endure. So...
Be Smart
Is Space A Thing?
Since the days of Ancient Greece, philosophers and scientists have been wondering: What is space? Is the absence of things.... a thing? These questions continued to fascinate physicists in the modern era, leading Isaac Newton, Ernst...
PBS
Is The Alcubierre Warp Drive Possible?
Inspired by Gene Roddenberry's Star Trek, physicist Miguel Alcubierre set out to transform one of the cornerstones of science fiction iconography, the Warp Drive, into reality. But is it even possible? Can we "warp" the fabric of reality...
PBS
Do Events Inside Black Holes Happen?
Black holes! From Stephen Hawking to Interstellar, black holes are mammoths in the world of science AND sci-fi. But what exactly IS a black hole? Do events happen inside black holes? Are black holes really a hole? Are black holes really...
PBS
How to Detect Extra Dimensions
On this Space Time Journal Club we look at how gravitational waves can be used to search for extra dimensions of space!
PBS
The Secrets of Feynman Diagrams
Unlock the secrets of Feynman Diagrams. Part 5 in our Quantum Field Theory series.
PBS
Are We Alone? Galactic Civilization Challenge
The Drake Equation tells us the likelihood that there are other advanced technological civilizations waiting for us among the stars. In this episode of Space Time we challenge you to use the Drake Equation to help us determine how near...
PBS
White Holes
Lurking in the depths of the mathematics of Einstein's general relativity is an object even stranger than the mysterious black hole. In fact it's the black hole's mirror twin, the white hole. Some even think that these could be the...
PBS
Will We Ever Find Alien Life?
The silence of the galaxy and the resulting Fermi Paradox has perplexed us for nearly 50 years. But our most recent surveys of the Milky Way finally allow us to draw scientific conclusions about the depressingly persistent absence of...
PBS
The Race to a Habitable Exoplanet - Time Warp Challenge
You've discovered a habitable exoplanet, but so has an an evil interplanetary mining corporation. Can you get to the planet before they strip it bare and leave it unsuitable for life? You're going to need a ship, the Lorentz...
PBS
What's Wrong With the Big Bang Theory?
Let's look further into what we don't yet know about the Big Bang, and how the theory could progress in the future. Since there is a discrepancy between general relativity and quantum mechanics, we continue to search for a grand unifying...
PBS
Escape The Kugelblitz Challenge
In the last episode Matt discussed how the Penrose Diagram enabled you to map how black holes affect Space Time. In this episode you can use that knowledge to stop an all-too-real threat to our planet. Aliens are trying to destroy the...
PBS
How Time Becomes Space Inside a Black Hole
Find out how time and space switch roles when we move beyond the event horizon of the black hole.