PBS
How To See Black Holes By Catching Neutrinos
Neutrinos are one of the most bizarre of known particles. Black holes are probably the most bizarre of astrophysical objects. Makes sense we should use one to study the other, no? Well, today we’re doing just that.
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How Does Gravity Escape A Black Hole?
Fact: in a black hole, all of the mass is concentrated at the singularity at the very center. Fact: every black hole singularity is surrounded by an event horizon. Nothing can escape from within the event horizon unless it can travel...
PBS
How To Build The Universe in a Computer
We routinely simulate the universe on all of its scales, from planets to large fractions of the cosmos. Today we’re going to see how it’s possible to build a universe in a computer - and see whether there’s a limit to what we can simulate.
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How To Simulate The Universe With DFT
If you used every particle in the observable universe to do a full quantum simulation, how big would that simulation be? At best a large molecule. That’s how insanely information dense the quantum wavefunction really is. And yet we...
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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 primordial black holes could actually hit Earth. If one did, it wouldn't just impact like an...
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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 efforts in quantum tunneling - both theory and experiment - show that superluminal motion may...
PBS
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 cutting, into fourths and eighths and sixteenths and so on? Will we ever get to a single pole?...
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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 actually, the good news is also that the crisis in cosmology has actually gotten worse, which...
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Navigating with Quantum Entanglement
We often think of quantum mechanics as only affecting only the smallest scales of reality, with classical reality taking over at some intermediate level. But in his 1944 book, What is Life?, the quantum physicist Erwin Schrödinger...
PBS
The Supernova At The End of Time
Good news everyone: it looks like the universe is going to end with a series of catastrophic explosions. The very, very long story short is that the universe ends in heat death, as it approaches maximum entropy, and its eternal...
PBS
Dissolving an Event Horizon
Black hole singularities break physics - fortunately, the universe seems to conspire to protect itself from their causality-destroying madness. At least, so says the cosmic censorship hypothesis. Only problem is many physicists think it...
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Does Quantum Immortality Save Schrödinger's Cat?
To quote eminent scientist Tyler Durden: "On a long enough timeline, the survival rate for everyone drops to zero." Actually… not necessarily true. If the quantum multiverse is real there may be a version of you that lives forever. If we...
PBS
Are Axions Dark Matter?
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Solving the Three Body Problem
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How To Capture Black Holes
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Why We Might Be Alone in the Universe
Why does it appear, that humanity is the lone intelligence in the universe? The answer might be that planet Earth is more unique than we've previously assumed. The rare earth hypothesis posits exactly this - that a range of factors made...
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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...
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How The Prescription Drug Supply Chain Is Killing Local Pharmacies
The supply chain that brings pharmaceutical drugs from the factory to the pharmacy is long, complex and unclear. Congress and several state legislatures have proposed or enacted laws to bring more transparency and curb soaring drug...
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Innovative Clinic Helps Doctors Avoid Burnout And Makes Healthcare More Affordable
The U.S. faces a growing shortage of physicians, especially those in primary care fields like internal medicine, mental health and pediatrics. The shortfall is driven by population and demographic trends and burnout. Fred de Sam Lazaro...
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Use Of Artificial Intelligence Generates Questions About The Future Of Art
Artificial intelligence is everywhere and part of our conversations about education, politics and social media. It's also a hot topic in the arts world as programs that generate art using AI are widely available to the public. But what...
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Blood Test Can Identify Risk For Pre-eclampsia, The Leading Cause Of Maternal Death
The Food and Drug Administration has approved a blood test that can identify pregnant women at severe risk for preeclampsia, a high blood pressure disorder that can develop during pregnancy and is a leading cause of maternal death...
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Am Radio Is Fading. Here's Why Some Critics Are Concerned
In recent years, podcasts and streaming internet content have been challenging AM radio for listeners. Now, there’s another threat: electric automakers are installing radios without the AM band in new vehicles, citing interference from...
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2 out of 3 North American bird species face extinction. Here’s how we can save them
As the climate crisis worsens, so does pressure on wildlife. The number of birds in North America has declined by 3 billion in the last 50 years. Brooke Bateman, director of climate science at the National Audubon Society, joins Ali...
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The health care challenges pregnant women of color face in rural areas
A CDC report shows maternal deaths nearly doubled over three years, with over 1,200 deaths in 2021. Rural communities, where maternal mortality is almost double urban rates, struggle to access lifesaving maternal healthcare. With support...