PBS
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...
PBS
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...
PBS
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?
For more information go to: https://nordvpn.com/spacetime and use the code: spacetime PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE
PBS
Solving the Three Body Problem
PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE ↓ More info below ↓ Sign up for the mailing list to get episode notifications and hear special announcements!...
PBS
How To Capture Black Holes
PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE ↓ More info below ↓
PBS
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...
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...
SciShow
Earth Has Another Magnetic Field
You probably know about the geomagnetic field that protects the earth from solar storms and radiation. But precision satellites have measured ANOTHER magnetic field coming from Earth, and its signals might hold the key to searching for...
SciShow
More on Mating & Monogamy
Hank clarifies the misconceptions about Chagus disease, discusses a couple of interesting celestial events - one that happened in the past and one that will happen in the distant future, and sheds more light on the benefits of sexual...
SciShow
When The Universe Will End
Hank serves up a buffet of news items that includes an approximate date for the end of everything, scientific proof that when it comes to sex bigger IS better, and a look behind how the London Olympics are going green. Bon appetit!
SciShow
5 Ways to Travel the Universe | Compilation
There are a lot of ways to get around in space, from using plain old sunlight to making super-hot plasma. We’ve talked about a lot of propulsion methods over the years, and now, it’s time for some highlights! Chapters Solar Sail 1:02...
SciShow
Satellite Squad Goals: The Cluster Mission to the Magnetic Field
Earth’s magnetic field is special! And, in the last 20 years, we’ve made incredible discoveries, thanks to a squad of probes that have flown around our planet, observing solar wind as a team!
SciShow
Why It Took a Decade to Launch The James Webb Space Telescope | Compilation
The James Webb Space Telescope has launched! But it was a very long road to get to this point, and we’ve been following the progress for a decade!
SciShow
The First Water on Earth Might've Come From… Earth? | SciShow News
Astronomers have thought for years that Earth was dry in the beginning, but a new paper suggests that Earth might have actually started out wet! And In other meteorite news, a new study of impact sites might give us new clues about...
SciShow
How Stars Freeze
When you think of a frozen object in space, you might think of Pluto, but stars themselves actually freeze.
SciShow
Can Moon Colonies Get Oxygen From the...Moon?
As we look towards longer missions to the Moon, the shear amount of resources needed to survive becomes a much bigger question. Without space semi-trucks to haul life-giving resources to astronauts, can we utilize the Moon’s barren...
SciShow
How to Kill a Galaxy
Our Milky Way galaxy is alive and well, producing new stars all the time. But there’s another group of galaxies out there, populated only by venerable red dwarf stars - the young stars are nowhere to be seen. In effect, these galaxies...
SciShow
Spacecraft Need New Heat Shields. Cue the Cuttlefish?
Scientists are always searching for new materials that maximize strength and thermal protection while also minimizing mass for space flight. So, when developing new heat shields, why are they looking to cuttlefish for inspiration?
SciShow
4 Tiny Missions Answering the Biggest Questions in Astrophysics
The Astrophysics Pioneers program is funding four innovative new missions that read like a best-hits album of the most exciting astronomical frontiers: from galaxy evolution and exoplanets, to neutron star mergers and astroparticle physics.
SciShow
Fire, Lightning, and Crystals in Space: 20 Years on the ISS
2020 marks two decades of people living and working about the ISS, and from fireballs to microgravity grown crystals, they've been keeping busy.
SciShow
What If Dark Energy Doesn’t Exist?
Dark Energy is what we call the mysterious force that seems to be pushing the universe apart. By some calculations, it makes up 70% of everything in nature. Or...maybe it doesn’t exist at all! Plus, Juno’s observations give us new...