What if there were a tunnel through the middle of the earth and you jumped in?

Our planet is full of beautiful places, but it’s also full of wonderfully weird places. We've put together some of our favorite episodes about our planet’s weirdest lakes!

By choosing the right path and the right reference frames, any superluminal motion can lead to information or objects returning to their origin before they depart.

Why do we see those stunning lights in the northern- and southernmost portions of the night sky? The Aurora Borealis and Aurora Australis occur when high-energy particles are flung from the Sun's corona toward the Earth and mingle with...

Does science tell us that Tylenol is changing our personalities? The short answer is 'no'. And learn about advances in transportation technology in this SciShow news.

What if your hour-long commute was reduced to just minutes? That's the promise of the hyperloop: a transit system designed around a pod that zooms through a vacuum-sealed space (roughly the size of a subway tunnel) at hyper-speed,...

What weird worlds are these video games creating?

Would you rather be bitten by a venomous rattlesnake or touch a poisonous dart frog? While both of these animals are capable of doing some serious damage to the human body, they deliver their dangerous toxins in different ways. Rose...

David Thouless, Duncan Haldane, and Michael Kosterlitz won the Nobel Prize in Physics in 2016 for discovering that even microscopic matter at the smallest scale can exhibit macroscopic properties and phases that are topological. But -...

Sending rockets into space requires sacrificing expensive equipment, burning massive amounts of fuel, and risking potential catastrophe. So in the space race of the 21st century, some engineers are abandoning rockets for something more...

Here it is, folks: the end. In our final episode of Crash Course Astronomy, Phil gives the course a send off with a look at some of his favorite topics and the big questions that Astronomy allows us to ask.

You’re cruising down the highway when all of a sudden endless rows of brake lights appear ahead. There’s no accident, no stoplight, no change in speed limit, or narrowing of the road. So why is there so much traffic? It's due to a...

Thanks to Qualcomm for sponsoring a portion of this video.

With their navigational skills and advanced longships, the Vikings sustained their seafaring for over 300 years. But for all their might, they left few monuments. Instead, fragments of stone, bark and bone found in the sites of ancient...

At the US-Mexico border, policies of prolonged detention and family separation have made seeking asylum in the United States difficult and dangerous. In this raw and heartfelt talk, immigration attorney Erika Pinheiro offers a glimpse...

To hopefully put your mind more at ease, Hank is here to talk about the work that goes into designing and building ICBMs.

We're going to be building on the Moon this decade -- and next will be Mars, says space architect Melodie Yashar. In a visionary talk, she introduces her work designing off-world shelters with autonomous robots and 3D printers and...

Every amazing mission you know about today started off as just an idea, and some of 2019’s early phase NIAC concepts could mean big things for our future.

Long before we had rocket scientists, the idea of spaceflight traveled from mind to mind across generations. With great visuals, TED Fellow and NASA economist Alexander MacDonald shows how 300 years of sci-fi tales -- from Edgar Allan...

You've discovered a habitable exoplanet, but so has an an evil interplanetary mining corporation. Can you get to the planet before they strip it bare and leave it unsuitable for life? You're going to need a ship, the Lorentz...

Elementary particles are the smallest known building blocks in the universe-and the neutrino is one of the smallest of the small. These tiny neutrinos can tell us about the furthest reaches and most extreme environments of the universe...

Asteroseismology allows scientists to explore stars with sound. It can help them figure out what a star is burning and even help pin down the age of stars!

Have you heard of Alexander von Humboldt? Not likely. The geologist turned South American explorer was a bit of an 18th century super scientist, traveling over 24,000 miles to understand the relationship between nature and habitat....

A new detector can use neutrinos to help us take a peek inside Earth, and a study of jellyfish galaxies can help us understand more about an unsolved problem in astronomy.