SciShow
Meet Icarus: The Farthest Star We've Ever Seen
We’ve seen a distant star from another galaxy far, far away, and the Milky Way is growing, thanks to baby stars born in the outer edge of our galaxy’s disk.
TED-Ed
TED-ED: What are gravitational waves? - Amber L. Stuver
In September 2015, scientists witnessed something never seen before: two black holes colliding. Both about 30 times as big as our Sun, they had been orbiting each other for millions of years. A fraction of a second before the crash, they...
TED Talks
TED: The mission to create a searchable database of Earth's surface | Will Marshall
What if you could search the surface of the Earth the same way you search the internet? Will Marshall and his team at Planet use the world's largest fleet of satellites to image the entire Earth every day. Now they're moving on to a new...
MinutePhysics
Spacetime Diagrams | Special Relativity Ch. 2
This video is chapter 2 in my series on special relativity, and it covers spacetime diagrams, rotational and translational symmetry of both time and space, how certain transformations preserve distances (measured in terms of a reference...
TED-Ed
TED-Ed: How far would you have to go to escape gravity? - Rene Laufer
Every star, black hole, human being, smartphone and atom are all constantly pulling on each other due to one force: gravity. So why don’t we feel pulled in billions of different directions? And is there anywhere in the universe where...
SciShow
How To X-Ray A Black Hole
Black holes are everywhere, including at the center of our galaxy. But because they’re invisible they’re quite difficult to study. Looking at the disks of material surrounding them, however, can give us tons of clues about how they...
Crash Course Kids
Danger! Falling Objects
So, what would happen if you dropped a hammer and a feather at the same time, from the same height? Well, the hammer would hit the ground first, right? But why? You might think it's because the hammer is heavier, or has more mass than...
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?
SciShow
The Science of Airport Security
Long lines, being patted down, and having your hands swabbed don't make for a wonderful day, but Michael Aranda explains the machines you encounter in airport security and the science and technology behind them.
Be Smart
Can You Bend Light Like This?
The other day I got bored and noticed this weird thing happened when I held my finger up to my eye, so I had to science it and figure it out! Let me know if you try these light-bending experiments too, especially that last one that I...
SciShow
How Do Thermal Imaging Goggles Work?
Movies like Predator reveal how useful thermal imaging goggles can be, but why do hot objects give off infrared radiation to begin with?
TED Talks
Moriba Jah: The world's first crowdsourced space traffic monitoring system
"Most of what we send into outer space never comes back," says astrodynamicist and TED Fellow Moriba Jah. In this forward-thinking talk, Jah describes the space highways orbiting earth and how they're mostly populated by space junk....
SciShow
We Still Can't Find the First Stars in the Universe | SciShow News
Astronomers looking farther back in time than ever before are giving us a better idea of what the early universe must have been like, and we've identified another of the mysterious ultraluminous X-ray pulsars.
SciShow
How Archaeologists Are Literally Recreating the Past | Experimental Archaeology
Archaeology might make you think about excavating dinosaur bones or exploring ancient ruins, but we can also learn a lot about the past through experimentation, sometimes with some pretty tasty results!
SciShow
Is the Size of Neutron Stars A Lie, Or Only A FRIB?
Have we been wrong about how big neutron stars are this whole time?
TED Talks
TED: The next step in nanotechnology | George Tulevski
Nearly every other year the transistors that power silicon computer chip shrink in size by half and double in performance, enabling our devices to become more mobile and accessible. But what happens when these components can't get any...
TED-Ed
Why do we, like, hesitate when we, um, speak? | Lorenzo García-Amaya
For as long as we've had language, some people have tried to control it. And some of the most frequent targets of this communication regulation are the ums, ers, and likes that pepper our conversations. These linguistic fillers occur...
SciShow
5 Things We Still Don't Know About the Solar System
We've already learned a lot about the solar system, but sometimes the most fascinating things are what we DON'T know.
TED-Ed
TED-Ed: The moon illusion - Andrew Vanden Heuvel
Have you noticed how the full moon looks bigger on the horizon than high overhead? Actually, the two images are exactly the same size -- so why do we perceive them differently? Scientists aren't sure, but there are plenty of intriguing...
SciShow
We Found Water on a Habitable Zone Exoplanet
Researchers found water in the atmosphere of an exoplanet about 110 light-years away, and there's another rock from interstellar space flying through our solar system!
Crash Course
Deep Time
As we approach the end of Crash Course Astronomy, it’s time now to acknowledge that our Universe’s days are numbered. Stars will die out after a few trillion years, protons will decay and matter will dissolve after a thousand trillion...
TED Talks
Pranav Mistry: The thrilling potential of SixthSense technology
At TEDIndia, Pranav Mistry demos several tools that help the physical world interact with the world of data -- including a deep look at his SixthSense device and a new, paradigm-shifting paper "laptop." In an onstage Q&A, Mistry says...
SciShow
5 Places NASA May Go to Next
NASA just announced the five finalists for the next Discovery missions. It looks like we’ll be sending probes to Venus, studying asteroids, or both!
SciShow
The Smallest Star in the Universe
SciShow Space takes you to the smallest star in the universe, and explains how astronomers figured out that's what it was!