This is what we astronomers call a blob, or a smudge, if you want to get really technical. It may not look like much from here, but what do you expect for something near the literal edge of the observable universe. If you were there when...

How to Turn Sound Into Light - Sonoluminescence

This video is about the differences between the corpses or final degenerate dense star forms that dead stars take: black holes, neutron stars, and white dwarfs. The main distinguishing features between them are the mass cutoffs...

Ocean waters are constantly on the move, traveling far distances in complex currents that regulate Earth's climate and weather patterns. How might climate change impact this critical system? Oceanographer Susan Lozier dives into the...

When it comes to piecing together what happened to civilizations that no longer exist, it can be challenging to solve the mystery. But research into Angkor, the Akkadian Empire, and even the Norse of Greenland, is helping us see that...

Dark Matter is the most abundant form of matter in the known universe, so what's keeping it from forming into planets?

Physicists have been struggling for some time to figure out why our universe is so comfy. Why, for example, are the fundamental constants - like the mass of the electron or the strength of the forces - just right for the emergence of...

Objective Collapse Theories offer a explanation of quantum mechanics that is at once brand new and based in classical mechanics. In the world of quantum mechanics, it’s no big deal for particles to be in multiple different states at the...

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. In fact, it has multiple properties that are so extreme that it almost certainly did NOT form...

Where are you right now? Until you interact with another particle you could be any number of places within a wave of probabilities. This is only one way that quantum mechanics challenges our perception of reality. Matt dives into these...

Causality is meant to move in one direction: forward. But the Quantum Eraser experiment seems to reverse causality. How and why can this happen and what are the implications of this experiment on how we understand Quantum Mechanics and...

Throughout history, there has been much speculation about what the fate of the universe would be. Many theorized that the universe would eventually succumb to the pull of gravity, and reverse its expansion in what was being called ‘The...

The Carboniferous Rainforest Collapse set the stage for a takeover that would be a crucial turning point in the history of terrestrial animal life. If it weren’t for that time when the rainforests collapsed - in an extinction event that...

If you tried to sum up the last 150 years or so in one image, a chart of exponential growth would be a good place to start. It shows that some things change faster over time. You could apply it to life expectancy. Or compound interest....

While they are incredible engineering marvels, we don't think about bridges all that much. But there's a good reason we should all be thinking about our bridges, since there's a weird reason that more of them might be at risk of failure...

Things can go wrong in scientific experiments sometimes, but when it comes to engineering, getting things wrong can be disastrous.

Is it possible that this century is the most important one in human history? The 21st century has already proven to be a period of rapid growth. We're on the cusp of developing new technologies that could entirely change the way people...

Mosquitoes are responsible for more human deaths every year than any other animal, but very few of the 3,500 mosquito species actually transmit deadly diseases to humans. Scientists have been conducting experiments using engineered...

The aftermath of the collapse of the Soviet Union and its Warsaw Pact had a huge impact on the countries of Eastern Europe. As the former satellite states turned away from communism and Soviet influence, some of them shifted toward...

This video is about the Schwarzschild radius of a black hole, (its "event horizon"), and how much mass and density is required to reach the point of no return where an object like a star, neutron star, red giant, etc...

Black holes have mystified physicists for decades, but with the help of quantum mechanics, we are beginning to make serious progress in understanding these strange objects. This week on Space Time, Matt dives deeper into the physical...

Hank brings us the news about the new Nobel Prize winners in the sciences, what they won for and what it all means.

Doctors beat back a disease that was killing tens of thousands of babies a year with a machine based on a simple principle of physics.





FYI: We try to leave jargon out of our videos, but if you want to learn more...

How to Turn Sound Into Light - Sonoluminescence