PBS
The Real Star Wars
Anti-Satellite weaponry, giant X-ray lasers and kinetic impact missiles nicknamed the "Rods from God." Find out about the history of the real star wars that have been waged over the past 50 years.
SciShow
Could Solar Panels in Space Solve all Our Energy Needs?
We need more solutions for our energy needs, and one idea is straight out of science fiction: Solar panels, in space.
SciShow
How Space Shuttle Discovery got its Solar-powered Wings
If you want to get into space, you need combustible fuel. But if you want to stay operational in space, you need to harness the power of the sun itself.
SciShow
How 5G Cell Service Could Hurt Weather Forecasts
Good weather forecasts save lives, but scientists are worried that 5G transmissions could drown out frequencies measured by weather satellites, setting weather forecasts back decades.
SciShow
Can Animals Predict Earthquakes?
You might have heard about animals behaving oddly right before an earthquake hits. But are these reports more than just anecdotes?
SciShow
Why does Saturn have rings?
Hank fields one of the most commonly asked questions about our solar system: Why does Saturn have rings? Part of the answer has to do with the fact that it's not the only planet that has them. Watch to learn more!
SciShow
Creating a Template for Habitable Exoplanets
We've found thousands of exoplanets over the years, but if we're going to find one that can sustain life, we need to take a look at the one planet we know that can, Earth.
SciShow
Detecting Tornadoes Early by Observing Lightning... from Space
It’s handy having a view of Earth from space. This particular view may be one that changes the way we predict weather phenomena.
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
Earth Has a New, Orbiting Disco Ball!
Earth has some new orbiters, and while one of them is vexing many scientists, another will help us learn more about our atmosphere.
TED Talks
TED: Let's clean up the space junk orbiting earth | Natalie Panek
Our lives depend on a world we can't see: the satellite infrastructure we use every day for information, entertainment, communication and so much more. But earth orbit isn't a limitless resource, and the problem of space debris will get...
SciShow
Space Trash: The Next Big Pickle
Earth's orbit has a bit of a litter problem. Hank outlines a few ways scientists have thought of to help clean things up.
SciShow
The Evolution of Spy Satellites
Today we take a look at the history and capabilities of spy satellites.
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
How to Clean Up After Ourselves in Space
We've launched thousands of spacecraft over the years. And as the space junk around our planet builds up, researchers are working on ways to clean things up using some obvious things, like lasers, and some less obvious ones, like solar...
TED-Ed
TED-Ed: How does your smartphone know your location? - Wilton L. Virgo
GPS location apps on a smartphone can be very handy when mapping a travel route or finding nearby events. But how does your smartphone know where you are? Wilton L. Virgo explains how the answer lies 12,000 miles over your head, in an...
SciShow
How to Make a Meteor Shower
Learn about how one Japanese startup wants to offer meteor showers on demand, and how this will affect our scientific study of the mesosphere.
SciShow
The Equator Is a Bad Place for These Rocket Launches
Some satellites orbit in the same direction the planet rotates, which means they get a boost for their launch, but most have orbits where that isn’t ideal, and that creates some challenges for engineers.
SciShow Kids
Check Out the Satellites!
You might not know it, but there are thousands of human-made satellites orbiting the Earth! They help us do everything from study the climate to make phone calls, and there are even some satellites that people can live on!
TED-Ed
TED-ED: Who won the space race? - Jeff Steers
On October 4, 1957, the Soviet Union launched the satellite Sputnik and, with it, an international space race. The United States and the Soviet Union rushed to declare dominance of space for 18 years, until the two countries agreed to a...
SciShow
How the US Launched Its First Satellite
60 years ago, in January 1958, the United States launched its first satellite, Explorer 1.
SciShow
How Do Satellites Get & Stay in Orbit?
SciShow Space takes you into Low Earth Orbit to explain how artificial satellites get up there and stay there -- at least for a while.
SciShow
Did We Find Longitude Thanks To A...Clock?
The equator is a clear and accurate line around Earth that makes measuring latitude a precise science, but when it came to figuring out how to do that with longitude, British sailors were at a loss. Until they devised a competition.
TED-Ed
TED-Ed: Daniel Finkel: Can you solve the unstoppable blob riddle?
A shooting star crashes onto Earth and a hideous blob emerges. It creeps and leaps, it glides and slides. It's also unstoppable: no matter what you throw at it, it just re-grows and continues its rampage. The only way to save the planet...