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
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
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.
SciShow
New Evidence for Planet 9! SciShow News
Astronomers have found more evidence for Planet 9, but another study has added another problem to our list of space travel problems.
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,...
SciShow
New Space-Flight Awesomeness!
SciShow Space celebrates the Falcon 9 vertical landing and looks forward to new missions in space! Also-- are globular clusters a good place to look for extraterrestrial life? Find out in this episode of SciShow Space News!
SciShow
Our Alarmingly Close Shave with an Asteroid
How often do we miss asteroids like 2017 OO1, and what are astronomers doing to limit their impact? Meanwhile, distant icy worlds might not look as promising in our search for extraterrestrial life as scientists once thought.
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
Do Any Stars NOT Have Planets?
Astronomers have used a few different methods to detect exoplanets, and improved telescopes are increasing the rate of discovery. But is it possible that any stars DON'T have planets, or are they just an expected feature of stellar...
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 SpaceX Launched the World's Most Powerful Rocket
We've found the first evidence of planets outside of the Milky Way, and SpaceX has finally launched the Falcon Heavy rocket into space!
SciShow
Could the Firefly Universe Exist?
Firefly takes place in an incredibly complicated star system. But it probably couldn't exist, because physics.
SciShow Kids
Are There Other Planets Like Earth?
Earth is unique in that it's the only planet we know of that can support life. But could there be another planet like ours somewhere far away?
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
SciShow Talk Show: Tabetha Boyajian
Hank and Tabetha discuss the mysterious star KIC 8462852 and what might explain its odd behavior (It's probably not an alien megastructure).
SciShow
The Planets with Inside-Out Weather
Way out in the solar system, the heat of the Sun drops off dramatically, so the gas giants get just a tiny percent of the solar radiation that reaches Earth. Instead, their weather is fueled from the inside out!
SciShow Kids
Happy Birthday, Sir Isaac Newton!
There's a birthday party at the fort, for one of history's most important scientists, Isaac Newton!
SciShow
Two New Planets Discovered?
Click here to find out more about "New Planets Found!" and "SUPER EARTH Orbiting Our Sun!". Ignore the clickbait...Hank Green explains what might have been found in this episode of SciShow Space.
SciShow
NASA Needs Astronauts!
Learn about what might be one of the most important exoplanets we've discovered yet, and what you need to apply to become an astronaut!
TED-Ed
TED-Ed: Could human civilization spread across the whole galaxy? - Roey Tzezana
Could human civilization eventually spread across the whole Milky Way galaxy? Could we move beyond our small, blue planet to establish colonies in the multitude of star systems out there? These questions are pretty daunting, but their...
TED Talks
Phil Plait: The secret to scientific discoveries? Making mistakes
Phil Plait was on a Hubble Space Telescope team of astronomers who thought they may have captured the first direct photo of an exoplanet ever taken. But did the evidence actually support that? Follow along as Plait shows how science...
TED-Ed
TED-ED: Why is NASA sending a spacecraft to a metal world? - Linda T. Elkins-Tanton
In 2026, an unmanned NASA spacecraft is scheduled to arrive at 16 Psyche, a massive, metallic asteroid floating somewhere between the orbits of Mars and Jupiter. Why is NASA so interested in this heavy metal asteroid? Are we going to...
PBS
Habitable Exoplanets Debunked!
When we say a planet is habitable, we aren't REALLY saying what we think we are saying. 'Habitable' means something else. Is Kepler 186f habitable, in the true sense of the word? And if not, what other planets should we be looking at?...
SciShow
Why Do the Planets Orbit in the Same Plane?
While there is a little wiggle room, the planets in our solar system really are orbiting on mostly the same level. Why do they do that?