PBS Space Time
预告片: PBS Space Time
运行: 26:14 分钟
质量: HD
第一次约会: Feb 11, 2015
上次播出日期: Sep 04, 2025
插曲: 415 插曲
季节: 12 季节

What Happens During a Quantum Jump?
Since the very beginning of quantum mechanics, a debate has raged about how to interpret its bizarre predictions. And at the heart and origin of that...

Can We Break the Universe?
Today we’re going to delve into a couple of the most famous paradoxes of special relativity: the Twin Paradox, The Ladder Paradox (aka the...

Is Dark Matter Made of Particles?
Dark Matter Particles: Gateway to The Dark Universe

How Does Gravity Warp the Flow of Time?
There’s a deep connection between gravity and time - gravitational fields seem to slow the pace of time in what we call gravitational time...

Gravitational Wave Background Discovered?
It was pretty impressive when LIGO detected gravitational waves from colliding black holes. Well we’ve just taken that to the next level with a...

Does Time Cause Gravity?
We know that gravity must cause clocks to run slow on the basis of logical consistency. And we know that gravity DOES cause clocks to run slow based...

How Does Gravity Affect Light?
We know that gravity exerts its pull on light, and we have an explanation for why. Actually, we have multiple explanations that all predict the same...

The NEW Crisis in Cosmology
I have good news and bad news. Bad news first: two years ago we reported on the Crisis in Cosmology. Since then, it’s only gotten worse. And...

Zeno's Paradox & The Quantum Zeno Effect
“A moving arrow is at rest.” This is obviously a nonsensical contradiction. But Zeno, a Greek philosopher famous for his metaphysical...

Why the Muon g-2 Results Are So Exciting!
When a theory makes a prediction that disagrees with an experimental test, sometimes it means we should throw the theory away. But what if that...

What If Dark Matter Is Just Black Holes?
It may be that for every star in the universe there are billions of microscopic black holes streaming through the solar system, the planet, even our...

The NEW Warp Drive Possibilities
That Einstein guy was a real bummer for our hopes of a star-hopping, science-fiction-y future. His whole “nothing travels faster than...

How To Know If It's Aliens
There’s one rule on Space Time: It’s never Aliens. But every rule has an exception and this rule is no exception because: It’s...

Breaking The Heisenberg Uncertainty Principle
Quantum mechanics forbids us from measuring the universe beyond a certain level of precision. But that doesn’t stop us from trying. And in some...

What If (Tiny) Black Holes Are Everywhere?
It’s fair to say that black holes may be the scariest objects in the universe. Happily for us, the nearest is probably many light-years away....

Are We Running Out of Space Above Earth?
While recent news about the Chinese Long March 5 Rocket made a lot of people very nervous because a 22-ton rocket was going to fall out of the sky,...

Can Space Be Infinitely Divided?
How many times can I half the distance between my hands? Assume perfect coordination and the ability to localize my palms to the quantum level. 15...

How Quantum Entanglement Creates Entropy
Entropy is surely one of the most perplexing concepts in physics. It’s variously described as a measure of a system’s disorder - or as...

Electrons DO NOT Spin
Quantum mechanics has a lot of weird stuff - but there’s thing that everyone agrees that no one understands. I’m talking about quantum...

Where Are The Worlds In Many Worlds?
Many Worlds interpretation of quantum mechanics proposes that every time a quantum event gets decided, the universe splits so that every possible...

How Magnetism Shapes The Universe
How far can you follow a compass needle? As far as the north magnetic pole where the needle starts spinning wildly? Compass needles align with...

How An Extreme New Star Could Change All Cosmology
A new white dwarf has been discovered (poetically named: ZTF J1901+1458) that’s doing some stuff that no white dwarf should ever be able to do....

How to Communicate Across the Quantum Multiverse
In the Many Worlds interpretation of quantum mechanics, the universal wavefunction is the reality, encompassing all possible histories and futures...

How Vacuum Decay Would Destroy The Universe
The universe is going to end. But of all the possible ends of the universe vacuum decay would have to be the most thorough - because it could totally...

First Detection of Light from Behind a Black Hole
How do you see the unseeable - how do you explore the inescapable? Our cleverest astronomers have figured out ways to catch light that skims the very...

Neutron Stars: The Most Extreme Objects in the Universe
We’ve traveled to lots of weird places on this show - from the interiors of black holes to the time before the big bang. But today I want to...

How Electron Spin Makes Matter Possible
Today I’m going to explain why you’re not falling through your chair right now using one simple fact, and one object. The fact is that...

Why Magnetic Monopoles SHOULD Exist
What happens if you cut a bar magnetic in half? We get two magnets, each with their own North and South poles. But what happens if you keep on...

New Results in Quantum Tunneling vs. The Speed of Light
Paradoxically, the most promising prospects for moving matter around faster than light may be to put a metaphorical brick wall in its way. New...

Will Constructor Theory REWRITE Physics?
The people behind the greatest leaps in physics - Einstein, Newton, Heisenberg, all had the uncanny ability to see the fundamentals - see the...

Is ACTION The Most Fundamental Property in Physics?
It’s about time we discussed an obscure concept in physics that may be more fundamental than energy and entropy and perhaps time itself....

What If Our Understanding of Gravity Is Wrong?
What if there is no such thing as dark matter? What if our understanding of gravity is just wrong? New work is taking another shot at that Einstein...

Are Black Holes Actually Fuzzballs?
Black holes are a paradox. They are paradoxical because they simultaneously must exist but can’t, and so they break physics as we know it. Many...

What Happens If A Black Hole Hits Earth?
The possibility that a black hole could actually impact Earth may seem straight out of science fiction, but the reality is that microscopic...

How to Find ALIEN Dyson Spheres
On our search for alien lifeforms we scan for primitive biosignatures, and wait and hope for their errant signals to happen by the Earth. But that...

The Universe (2007)
From the planets to the stars and out to the edge of the unknown, history and science collide in a wondrous yet deadly adventure through space and...

The Future Of (2022)
With the help of industry experts, this innovative docuseries examines new and emerging technological trends to imagine revolutionary possibilities.

Critter Fixers: Country Vets (2020)
100 miles south of Atlanta, Dr. Hodges and Dr. Ferguson are two longtime friends who own and operate Critter Fixer Veterinary Hospital. Together with...

Blue Planet II (2017)
There is nowhere more powerful and unforgiving yet more beautiful and compelling than the ocean. Join us and explore the greatest yet least known...

Brille (2013)
Brille is a humor-based quiz show where some of Norways best known comedians get to work on seemingly impossible tasks and questions. The answers are...

Dinosaurs Inside & Out (1997)
Extinct for millions of years, dinosaurs continue to fascinate as scientists struggle to understand the creatures that went from domination to...