Season
Season 2025 Episode
- Season 2021 What Happens During a Quantum Jump?
- Season 2021 Can We Break the Universe?
- Season 2021 Is Dark Matter Made of Particles?
- Season 2021 How Does Gravity Warp the Flow of Time?
- Season 2021 Gravitational Wave Background Discovered?
- Season 2021 Does Time Cause Gravity?
- Season 2021 How Does Gravity Affect Light?
- Season 2021 The NEW Crisis in Cosmology
- Season 2021 Zeno's Paradox & The Quantum Zeno Effect
- Season 2021 Why the Muon g-2 Results Are So Exciting!
- Season 2021 What If Dark Matter Is Just Black Holes?
- Season 2021 The NEW Warp Drive Possibilities
- Season 2021 How To Know If It's Aliens
- Season 2021 Breaking The Heisenberg Uncertainty Principle
- Season 2021 What If (Tiny) Black Holes Are Everywhere?
- Season 2021 Are We Running Out of Space Above Earth?
- Season 2021 Can Space Be Infinitely Divided?
- Season 2021 How Quantum Entanglement Creates Entropy
- Season 2021 Electrons DO NOT Spin
- Season 2021 Where Are The Worlds In Many Worlds?
- Season 2021 How Magnetism Shapes The Universe
- Season 2021 How An Extreme New Star Could Change All Cosmology
- Season 2021 How to Communicate Across the Quantum Multiverse
- Season 2021 How Vacuum Decay Would Destroy The Universe
- Season 2021 First Detection of Light from Behind a Black Hole
- Season 2021 Neutron Stars: The Most Extreme Objects in the Universe
- Season 2021 How Electron Spin Makes Matter Possible
- Season 2021 Why Magnetic Monopoles SHOULD Exist
- Season 2021 New Results in Quantum Tunneling vs. The Speed of Light
- Season 2021 Will Constructor Theory REWRITE Physics?
- Season 2021 Is ACTION The Most Fundamental Property in Physics?
- Season 2021 What If Our Understanding of Gravity Is Wrong?
- Season 2021 Are Black Holes Actually Fuzzballs?
- Season 2021 What Happens If A Black Hole Hits Earth?
- Season 2021 How to Find ALIEN Dyson Spheres
PBS Space Time - Season 2021 Episode 8 The NEW Crisis in Cosmology
10.00 48 minutes 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 actually, the good news is also that the crisis in cosmology has actually gotten worse, which means we may be onto something!
The most exciting thing for any scientist is when something they thought they knew turns out to be wrong. So it’s no wonder that many cosmologists are starting to get excited by what has become known as the Hubble tension, or the crisis in cosmology. The “crisis” is the fact that we have two extremely careful, increasingly precise measurements of how fast the universe is expanding which should agree with each other, and yet they don’t.
