In the late 2000s, scientists looking deep into space discovered the largest known water reservoir in the universe inside a quasar, orbiting a supermassive black hole. Learn more about quasars and what this water can tell us about the...

What's more exciting than a spaceship? A spaceship on Fiya! NASA plans on playing with fire. Caitlin Hofmeister explains in this episode of SciShow Space!

What if we told you that there was a time when oxygen almost wiped out all life on Earth? 3 billion years ago, when the world was a place you'd never recognize, too much of a good thing almost ruined everything for everybody.

There’s an invisible line between two groups of islands in the Indian Ocean with two totally different animal populations. It took three branches of science to figure out why it exists.

Hank summarizes the exciting news about Planetary Resources, a company with plans to mine near-earth asteroids for precious metals and water, and what these plans might mean for humanity's future in space.

So we know what life needs here to work, and we've talked a little about what life COULD look like on other planets. But what about plant life? What could plant life look like on other planets? In this episode of Crash Course Kids,...

NIAC has awarded their first two grant winners for phase III: optical mining and 3D modeling craters, and researchers are further honing in on how to identify faraway habitable planets.

The sun is obviously a big factor in the earth's weather, but changes in the solar cycle don't always affect our climate in straightforward ways.

From gigantic planets too close to their stars, to those in unfathomably wide orbits, astronomers have discovered seemingly impossible solar systems that shouldn’t exist at all. But they do.

SciShow News gives you some wet and weird developments from around the solar system, including new insights about what liquid lurks under the surface of Titan, and a sweaty comet that's been spotted on its way toward the sun.

So how do astronauts manage to pee and poop in microgravity? And what happens to all of their waste? Do you really want to know? If you do, the answers are inside!

It may sometimes seem like things are getting worse, but there's lots of reasons to be optimistic about the future. More people have access to toilets and sanitation than ever before. Thanks to public health improvements like this, since...

If insects suddenly morphed into large beings and decided to wage war on us, there's no doubt that humans would lose. There are an estimated 10 quintillion individual insects on earth, outnumbering humans by more than a billion to one....

The Gaia space observatory released a detailed 3d map of the Milky Way, and scientists have figured out why Charon's north pole is red!

Infinitesimally small quantum dots can turn a window into a see-through solar panel!

SciShow News introduces you to the most massive land animal ever to walk the earth (pretty much) and tells you what’s going on with all of these earthquakes lately.

Welcome back to SciShow Quiz Show! In this episode Hank will be competing with older brother John Green in a battle of science related trivia on behalf of Subbable subscribers Anna Dilley & Andrew Villarreal.

Hank breaks the news to you about your brain on football, the reality behind the latest moon-base plan, and an epic win -- and fail -- in the animal kingdom.

Science probably isn’t the first thing that pops into your head when you think about Alaska, but it has a lot to offer when it comes to learning about the world, from cold corals to our behavior.

Hank talks about astrobiology - the study of and search for life in the universe off Earth. Right now, the field has more questions than answers, but all they all seek to answer that one fundamental query: are we alone in the universe?

It’s not easy to find active plate tectonics on other worlds, but doing so may bring us one step closer to finding a planet that can support life.

The man who helped usher in the environmental movement in the 1960s and '70s has been rethinking his positions on cities, nuclear power, genetic modification and geo-engineering. This talk at the US State Department is a foretaste of his...

Our universe is not a very diverse place when it comes to shapes. Large celestial bodies become spheres, galaxies become discs, and there is little room for variation. Why is this? Well it turns out physics has some pretty strict rules...

2016 was a lot of things, but for astronomers, it meant the discovery of some of the farthest, faintest, and youngest objects in the universe we've seen yet.