SciShow
Tatooine Discovered?
Hank tells us about NASAs discovery of the 1st planet ever discovered to be orbiting a binary star.
Crash Course
The Scientific Revolution: Crash Course History of Science
So, what exactly is a scientific revolution? And are they more than just moments in time Historians use to mark the beginning and ending of things through time? In this episode we'll look into some ideas and people named Nick and how...
SciShow
Dark Matter is Slowing Down the Milky Way
The effects of dark matter on galaxies is a mystifying and difficult thing to study, but the Milky Way's galactic bar might present an exciting way to quantify how much of it exists!
TED Talks
Phil Plait: How to defend Earth from asteroids
What's six miles wide and can end civilization in an instant? An asteroid -- and there are lots of them out there. With humor and great visuals, Phil Plait shows us all the ways asteroids can kill us (yipes), and what we must do to avoid...
TED Talks
Henry Lin: What we can learn from galaxies far, far away
In a fun, exciting talk, teenager Henry Lin looks at something unexpected in the sky: distant galaxy clusters. By studying the properties of the universe's largest pieces, says the Intel Science Fair award winner, we can learn quite a...
SciShow
Maybe Mars's Ocean Never Left | SciShow News
Many researchers believe that all the water on Mars dried up, but some evidence suggests that it might have dried in.
SciShow
Special Webb Update: The Webb's First Four (actually 7) Images Explained
The first full-color images from the James Webb Space Telescope are finally here! Let's take a look, talk about what we're seeing, and compare them to the most detailed version of these images we had before.
SciShow
The Sweetest Rocks in Space
Sugars aren’t just for munching and crunching, they also make up our genetic code! So what does it mean to find sugars INSIDE meteorites?
PBS
The End of the Habitable Zone
The Sun is getting brighter and the planets in our solar system that are habitable are changing.
SciShow
3 Ways Pi Can Explain Practically Everything
What’s irrational and never ends? Pi! Hank explains how we need pi to explain some of the most basic but most important principles of the universe, in honor of Pi Day.
TED Talks
TED: Why earth may someday look like Mars | Anjali Tripathi
every minute, 400 pounds of hydrogen and almost 7 pounds of helium escape from earth's atmosphere into outer space. Astrophysicist Anjali Tripathi studies the phenomenon of atmospheric escape, and in this fascinating and accessible talk,...
TED Talks
Will Marshall: Tiny satellites show us the Earth as it changes in near-real-time
Satellite imaging has revolutionized our knowledge of the Earth, with detailed images of nearly every street corner readily available online. But Planet Labs' Will Marshall says we can do better and go faster -- by getting smaller. He...
SciShow
Where Are All the Exo-Earths?
Scientists have discovered over 5,000 exoplanets in the last few decades, but where are the Exo-Earths?
SciShow
Space Headwinds Might Help Us Find Dark Matter
Some scientists are hoping to use our motion through the galaxy to help detect some of the most elusive particles of all: dark matter.
Crash Course
Dark Energy, Cosmology part 2
The majority of the universe is made up of a currently mysterious entity that pervades space: dark energy. We don’t know exactly what it is, but we do know that dark energy accelerates the expansion of space. We think this means the...
SciShow
The Cosmic Lasers That Form in Outer Space
Lasers are incredible narrow beams of light we can use to do everything from cutting metal to operating on people's eyeballs. But even though we came up with the idea on our own, humans didn’t actually make the first lasers.
SciShow
The Tiny Planet Revealing Gravity’s Big Secrets
Mercury’s path through our solar system is, well, a little eccentric, and some of its movements were a mystery astronomers couldn’t explain for a long time. Then, in the early 20th century, Einstein reran the numbers and proved a whole...
SciShow
How Did the Milky Way Get Its Spiral?
Most galaxies that we know of are spirals, including the Milky Way, but how do they form and keep their shape over billions of years?
SciShow
Can We Grow Plants On the Moon?
Despite how easy it looks in movies, growing plants on other planets is trickier than you might imagine.
SciShow
Why These Rovers Will Never Go To Mars
It’s nice to think that every rover we land on Mars is totally unique, but isn’t it even nicer to know that they’ve got a twin or even a triplet here on Earth making sure they’re up for the job ahead?
SciShow
The Chinese Mission Finding Water on Mars
Several rovers on Mars's surface are currently in operation, including one you might not have heard of: China’s Zhurong rover. It's already spent over a year on the Martian surface and is bringing us ever closer to understanding the...
TED Talks
TED: Where are all the aliens? | Stephen Webb
The universe is incredibly old, astoundingly vast and populated by trillions of planets -- so where are all the aliens? Astronomer Stephen Webb has an explanation: we're alone in the universe. In a mind-expanding talk, he spells out the...
SciShow
A Farewell to the Arecibo Observatory | SciShow News
On December 1, 2020, Arecibo's long-story came crashing down to an end. While it's sad to see this monumental observatory go, it's worth looking back over the many discoveries it's made over the last 60 years.