What has the highest melting point known to us? Hank Green explains in this episode of SciShow.

In this final segment on the four fundamental forces of physics, Hank tackles the magnetic force, the second of the two ways in which electromagnetism is apparent in the universe

Jane Poynter tells her story of living two years and 20 minutes in Biosphere 2 -- an experience that provoked her to explore how we might sustain life in the harshest of environments.

Gym teacher Hank gives us the full story of the past, present, and future of birth control.

Between 2008 and 2016, the United States deported more than three million people. What happens to those left behind? Journalist Duarte Geraldino picks up the story of deportation where the state leaves off. Learn more about the wider...

Bees and flowers are as classic a pair as peanut butter and jelly. But recent research suggests there's a third, much tinier partner in this relationship!

You may have heard the rumor. Every seven years your body becomes a whole new person. But is there anything to this? Check out this SciShow episode to find out!

It may seem like the semicolon is struggling with an identity crisis. It looks like a comma crossed with a period. Maybe that's why we toss these punctuation marks around like grammatical confetti; we're confused about how to use them...

In today's episode Hank talks about hair: What's it good for, what's it made of, and why do we have less than other mammals?

Indigo may be a very vague and unnecessary color, but it has an interesting history that involves some plants, turmoil, and Isaac Newton's interest in the number seven.

Gene therapy is really complicated both scientifically and ethically. But it also has the potential to do some amazing things - like treating life threatening diseases in babies before they are even born.

According to Newton's law of gravitation, the sun should "pull" way harder on the moon than the Earth does. So does the moon actually orbit the Earth? Why?

Hank and physiologist Jon Harrison discuss the question of insect size and major theories that attempt to explain why there is a limit to how large insects can get with current conditions on Earth.

Humans make a lot of noise! Transportation, industries, & how we work and play in natural spaces all have an impact on the sound we put out every day, and all this noise pollution is disrupting how animals use sound to communicate.

In 1980, Paul Ehrlich and Julian Simon bet $1,000 on a question with stakes that couldn't be higher: would the earth run out of resources to sustain a growing human population? They bet $200 on the price of five metals. If the price of a...

In 1963, Jacques Cousteau lived for 30 days in an underwater laboratory positioned on the floor of the Red Sea, and set a world record in the process. This summer, his grandson Fabien Cousteau broke that record. Cousteau the younger...

For most of history, scientists weren't quite sure why our hearts were beating or even what purpose they served. Eventually, we realized that these thumping organs serve the vital task of pumping clean blood throughout the body. But how?...

If you find some trees with little apple-like fruits by the ocean, beware! It might be a Manchineel, the world's most dangerous tree.

Upside Down Mountains in Real Life

Because of the chaotic way fingerprints develop and the multiplying effect of compound probability, it's basically impossible for any two fingers to have matching...

Did humans evolve from monkeys or from fish? In this enlightening talk, ichthyologist and TED Fellow Prosanta Chakrabarty dispels some hardwired myths about evolution, encouraging us to remember that we're a small part of a complex,...

Why Poor Places Are More Diverse

Your rich, eccentric uncle just passed away, and you and your 99 nasty relatives have been invited to the reading of his will. He wanted to leave all of his money to you, but he knew that if he did, your relatives would pester you...

During peak thunderstorm season, Lake Maracaibo has an average of 28 lightning strikes per minute hit its surface. But why?