SciShow
Where Do the Biggest Galaxies Come From?
Submillimeter galaxies are ancient, dense, massive galaxies with up to 10 times the number of stars in the Milky Way, and for a long time, scientists couldn’t even figure out how they existed in the first place.
SciShow Kids
Why Does the Moon Change?
Have you ever wondered why, some nights, the moon looks like a big, bright circle, and some nights it looks like a little sliver? Join Jessi and Squeaks to learn about how the moon's orbit changes the way we see it here on Earth!
Crash Course Kids
Spaced Out
So... how big is the Universe? It's big... really big... no, bigger than that... it's big. In this episode of Crash Course Kids, Sabrina gives us some perspective on this whole Universe thing and how we fit into it.
SciShow
The Two-Faced Role of Planetary Magnetic Fields
Given that Earth’s magnetic field helps protect its life-sustaining atmosphere, you might think that the stronger a planet’s magnetic field, the better. But as it turns out, some planets’ relationships with their magnetic fields are a...
SciShow
How Jupiter’s Moons Showed Us the Speed of Light
Light travels through space as fast as anything in the universe possibly can, but before scientists could figure out light’s speed, they had to figure out whether that speed was even finite.
SciShow
This Tank of Water Could Change Physics Forever
No one has ever conclusively seen a proton turn into other, lighter particles, but fifty million liters of water in Japan might change that and our ideas about subatomic particles forever.
PBS
Extinction by Gamma-Ray Burst
Find out about the last time and the next time the Earth will be hit by a Gamma-ray Burst.
SciShow Kids
Get to Know Your Galaxy!
Have you ever thought about what's beyond our solar system? Think real big, because we're about to explore galaxies!
SciShow
3 Cosmic Time Capsules
Long before we were around, the universe was preserving clues about the distant past, in everything from little balls of carbon to huge groups of stars.
SciShow
Earth Doesn’t Orbit the Sun
Understanding gravity can sometimes be a bit of a balancing act, much like the fundamental laws of physics and how they inform what it is exactly that Earth orbits.
SciShow
How Doctors on Earth Stopped a Medical Emergency in Space
There was a medical incident on the ISS which required NASA to treat an astronaut from Earth. And astronomers have discovered what might be some of the universe’s earliest stars.
SciShow
3 Historic Firsts in Asteroid Exploration
We’ve visited lots of places in our solar system in the last 60 years, but modern technology has made an unlikely candidate the hottest new frontier of solar system exploration: asteroids. Today, we’ll take a look at a few exciting...
SciShow
What Would Happen If the Planets Lined Up?
Planetary alignments: They're the favorite astronomical scenario of kooks, con artists, and Hollywood producers everywhere. But has it ever happened? And what would it do to Earth if it did?
SciShow
Meet the Sea Dragon: The Biggest Rocket Ever Designed
The 1960s were an optimistic time for space exploration - so much so that a team designed a rocket called the Sea Dragon that was big enough to launch an entire space station from the sea in one go!
SciShow
A ‘New Neptune’ With Water, and Cyanide in Space
SciShow Space News shares the latest developments from around the universe, including the discovery of water vapor on a new “exo-Neptune,” and cyanide found in the clouds where stars are born.
SciShow
What If the Universe Was Shaped Like a Donut?
The universe could be a donut in a fourth spatial dimension. Which would mean that we could potentially see our own galaxy repeated from the past... Our 3D brains aren't ready for this.
SciShow
The Deep Space Network A Communication Hub That Also Does Science!
The Deep Space Network is a special network of radio dishes for tracking and talking to spacecraft, and it contributes some cool scientific observations of its own too.
SciShow
The Truth About the Million-Dollar Space Pen
NASA spend lots of money and time to create a pen that could use in space, on the other hand, their rival Soviet just used a pencil' You've probably heard this story, but is it true? Here is the truth about the space pen!
SciShow
Stardust Discovery, and 2 Planetary Conjunctions
SciShow Space shares the latest developments from around the universe, including news about the first material ever collected from outside the solar system, and a backyard astronomers’ guide to two upcoming planetary conjunctions.
SciShow
The Biggest-Ever Supernova, Debunked!
Is it a bird? A plane? A supernova? No! It turned out to be something else! We've also now studied the weather on a gas giant exoplanet!
TED Talks
TED: Your kids might live on Mars. Here's how they'll survive | Stephen Petranek
It sounds like science fiction, but journalist Stephen Petranek considers it fact: within 20 years, humans will live on Mars. In this provocative talk, Petranek makes the case that humans will become a spacefaring species and describes...
SciShow
The Supernova of 1054, Our Very Special Guest Star
All of humanity likely saw it, a brilliant supernova that lit up the daytime sky in 1054. But 960 years later, there’s still a lot we dont quite understand about the famous celestial phenomenon.
SciShow
Could There Be Planets Beyond Neptune?
Did you grow up thinking there were nine planets in the solar system? You might have been right all along! Today we discuss the possibility of distant worlds in our solar system.
PBS
Did Life on Earth Come from Space?
How did life on Earth get started? Did life on Earth originate on another planet? Either Mars, or in a distant solar system? Could Earth life have spread to have seeded life elsewhere? Let's see what modern science has to say about the...