You know how moths like to fly into lamps or crawl all over your tv screen at night? Why do they do this?! The answer is more complicated than you might think...

While not used much any more as a primary source of light, candles are still everywhere, from an aroma in a bathroom to a mood during dinner. That is, until they’re gone.

Honey bees may be small, but they manage to survive some pretty big disasters. Whether it’s hurricanes, wildfires, or even volcanoes, honey bees seem to have a plan for everything.

We usually think of 'hacking' as a bad thing, but scientists are working on ways to hack the brain that will greatly benefit people with prosthetics, and maybe someday people with paralysis.

Different fuels create different types of fires, and each one needs to be extinguished using a specific strategy. Do you know which class of extinguisher is needed for different fires? Hosted by: Michael Aranda

Did you know that, despite their serene, picturesque appearance, some frozen lakes can catch fire? Why are climate scientists studying the explosive gas bubbles trapped in lake ice?

The answer to why wasabi is such a nose burner has to do with a compound that researchers are trying to use in a creative way! Hosted by: Stefan Chin

Fashion fads come and go—but did you know that some fashion trends are downright dangerous?

Living in space is pretty different from living on Earth, and not just because people can float around! Today, Jessi and Sam the Bat learn about the weird ways things like fire and water behave when they are in space.

We don't want to deluge you with information on the subject, but this week on Crash Course Mythology, Mike Rugnetta is talking once again about floods. We're looking at ancient flood myths in the Americas, and what they can tell us about...

Throughout history humans have come up with lots of different ways to build shelters for themselves. But sometimes, inspiration for better construction materials comes from nature, in structures you might not expect — like the scales on a

The midwife Xoquauhtli has a difficult choice to make. She owes a debt to her patron Teteoinnan, the female warrior goddess at the center of the Aztec seasonal festival, who must be kept happy or she will bring bad luck. Xoquauhtli...

Can art save lives? Not exactly, but our most prized professionals (doctors, nurses, police officers) can learn real world skills through art analysis. Studying art like Rene Magritte's Time Transfixed can enhance communication and...

Nanahuatl, weakest of the Aztec gods, sickly and covered in pimples, had been chosen to form a new world. There had already been four worlds, each set in motion by its own "Lord Sun," and each had been destroyed. For a new world to be...

In which Mike Rugnetta teaches you about Ma'ui, prominent hero of many cultures in Oceania, aka the Pacific Island nations. Ma'ui is just the kind of hero we're interested in here at Crash Course. He's a culture hero, he's a an...

The path that products take to get onto store shelves doesn’t always leave the best impact on the environment. But with green chemistry, chemists have found ways to make the production of some items safer for both people and the planet.

This week on Crash Course Mythology, Mike is teaching you about the archetypes that are often associated with male divinities. We're going to talk about Fathers & Sons, Kings & Judges, Saviors & Sages, Shamans, Tricksters, and Lords of...

Hank remembers Back to the Future and tells us about his favorite word combination--lasers and fusion.

These animals can detect heat through some fascinating biological mechanisms, and they are proving to be boons to the scientific community.

2020 marks two decades of people living and working about the ISS, and from fireballs to microgravity grown crystals, they've been keeping busy.

Thanks to climate change, many regions are experiencing longer and more dangerous wildfire seasons. Here are 4 high-tech ways we are trying to stop these fires in there tracks, as well as one that’s a bit simpler.

In this intimate talk filmed at TED's offices, energy innovator Amory Lovins shows how to get the US off oil and coal by 2050, $5 trillion cheaper, with no Act of Congress, led by business for profit. The key is integrating all four...

Your eyes get heavy and gradually close... But wait! It's only lunch time and you still have so much to do. Would taking a nap help? Or would it derail your day? Well, that depends on a few things— especially what stages of sleep the nap...

There are a lot of nuclear weapons on Earth, so many that we often say it's enough to "destroy the world several times over." But could we? Well, that depends on what you mean. Also...no matter what you mean, probably not. The Earth is...