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PBS Space Time
The Crisis in Cosmology
The hubble constant--the rate of expansion of our universe--has consumed astronomers.
PBS Space Time
Our Antimatter, Mirrored, Time-Reversed Universe
The foundations of quantum theory rests on its symmetries.
PBS Space Time
Are Virtual Particles A New Layer of Reality?
Let me tell you a story about virtual particles. It may or may not be true.
PBS Space Time
Will We Ever Find Alien Life?
Recent surveys draw scientific conclusions about the persistent absence of aliens.
PBS Space Time
Quantum Gravity and the Hardest Problem in Physics
General relativity and quantum mechanics seem to describe all of observable reality.
PBS Space Time
Quantum Theory's Most Incredible Prediction
Do the theories of quantum physics truly represent the underlying workings of reality?
PBS Space Time
How Close To The Sun Can Humanity Get?
Humanity is coming closer to touching the Sun after launching the Parker Solar Probe.
PBS Space Time
The Misunderstood Nature of Entropy
Entropy is an intriguing and widely misunderstood concept.
PBS Space Time
Black Hole Swarms
We can now see that the Milky Way is swarming with tens of thousands of black holes.
PBS Space Time
The Unruh Effect
A black hole can never catch up to you, but the Unruh radiation it generates sure can.
PBS Space Time
Horizon Radiation
What is Horizon radiation? How does it apply to the Unruh Effect and Hawking Radiation?
PBS Space Time
Extinction by Gamma-Ray Burst
Find out about the last time and the next time the Earth will be hit by a Gamma-ray Burst.
PBS Space Time
Neutron Stars Collide in New LIGO Signal?
LIGO may have just detected gravitational waves from the collision of two Neutron Stars.
PBS Space Time
The Secrets of Feynman Diagrams
Unlock the secrets of Feynman Diagrams. Part 5 in our Quantum Field Theory series.
PBS Space Time
The Treasures of Trappist-1
Can humanity survive on one of the seven earth-like Trappist-1 planets?