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Gabe breaks down the steps for how he determined the density of the moon in Majora's Mask.

The equations of quantum field theory allow us to calculate the behaviour of subatomic particles by expressing them as vibrations in quantum fields. But even the most elegant and complete formulations of quantum physics – like the Dirac equation or Feynman’s path integral - become impossibly complicated when we try to use them on anything but the most simple systems.

What happens when a star eats its planets? Find out on today’s Space Time Journal Club.

You may have heard that a kilogram of feathers weighs the same as a kilogram of steel, but that all depends on where you weigh them. This video is all about the difference between mass and weight, and how weirdly awesome Earth’s gravity really is.

Unlock the secrets of Feynman Diagrams. Part 5 in our Quantum Field Theory series.

How do you take a picture of a black hole and what can we learn from it? Our first ever actual bona fide photo of a black hole, made by the Event Horizon Telescope and revealed to the world in a press conference on April 10th. Since then it’s got plenty of coverage, because … I mean look at it. It’s a freaking black hole. It’s black, it’s holey, it’s everything we hoped it would be.

We’ve been failing to detect dark matter for decades. Finally, the latest failure to detect dark matter may have actually proved its existence. One of these is true: either most of the matter in the universe is invisible and formed of something not explained by modern particle physics OR our understanding of gravity is completely broken.

Imagine you have four cubes, whose faces are colored red, blue, yellow, and green. Can you stack these cubes so that each color appears exactly once on each of the four sides of the stack?

Jesus’ name in Hebrew was “Yeshua” which translates to English as Joshua. So how did we get the name “Jesus”? And is “Christ” a last name? Watch the episode to find out!

In this episode of the Space Time Journal Club Matt discusses how two independent research teams created their own Time Crystals, a form of matter that breaks time translational symmetry and could be used in quantum computers.

Nuclear weapons represent the darker side of E=mc^2. Science has given us the ability to understand what will happen if these weapons are ever used again… and what will happen if they are *never* used again.

The Hubble Telescope found more evidence of vast plumes of water bursting through the icy surface of Jupiter’s moon Europa. What does this tell us about the potential for life on Europa?

Whales are amazing animals. Since they evolved from land mammals, their biology breaks ALL the rules! Well, as whales say, rules were meant to be broken.

It’s the holiday season and we all know that means seeing old St. Nick in his big red suit. But have you ever stopped to wonder why he doesn’t wear any other color? Because he used to be seen wearing blue suits, purple suits, yellow suits and sometimes he was even skinny! So how did we end up a jolly bearded Santa who only dresses in red? Watch the episode to find out.

Was an incredible drop in entropy responsible for the Big Bang? If that’s the case, this would lead us to conclude that a great many other things are possible, including the likelihood that you are a Boltzmann Brain.

Although it's funding is nowhere NEAR the amount Hollywood invests in moviemaking each year, crowdfunding is a way better indicator of what the audience wants to see, the one area Hollywood has failed in time and time again. Will Kickstarter put an end to the Hollywood system?

What do the Sagas of the Icelanders and Game of Thrones have in common? Dr. Zarka answers this question and explores how the draugr, Nordic undead monsters, bear a striking resemblance to the White Walkers—and more importantly, how these monsters connect to the history of Ancient Nordic peoples.

Joe went behind the scenes at Monterey Bay Aquarium to meet the Giant Pacific Octopus, a powerful and curious creature that challenges many of our notions of intelligence!

It’s the most famous prediction of perhaps the most famous genius of our time ... Stephen Hawking's theory of Hawking Radiation.

What exactly will happen when the sun dies?

In this video, we discuss the reports about the detection of a pair of supermassive black holes orbiting only one light year apart from each other. Studying the dance of these giants should tell us a ton about how black holes grow.

If you have perfect knowledge of every single particle in the universe, can you use the laws of physics to rewind all the way back to the Big Bang? Is the entire history of the universe perfectly knowable? Or has information somehow lost along the way?

Clothing is ultimately just fabric designed to cover our bodies. So why was it illegal for women to wear men’s clothing and for men to wear women’s clothing? And why is it still illegal in some parts of the world?

Conservation laws are among the most important tools in physics. They feel as fundamental as you can get. And yet they’re wrong - or at least they’re only right sometimes. These laws are consequences of a much deeper, more fundamental principle: Noether’s theorem.

Energy is the most powerful and useful concept in all of physics, but what exactly is it?