SciShow
The Telescope That Revealed the X-Ray Universe
Some of the most exciting phenomena in space can’t be seen from Earth because our atmosphere soaks up high-energy light. That’s why NASA built Chandra, the most powerful X-ray telescope ever launched, and the observatory has helped...
SciShow
How We Discovered the Milky Way's Black Hole
The search began with a physicist checking for sources of static on phone calls in the 1930s, but it took several decades to finally make one of the biggest discoveries in astronomy, Sagittarius A*.
TED-Ed
TED-Ed: Could the Earth be swallowed by a black hole? - Fabio Pacucci
From asteroids capable of destroying entire species to supernovae that could exterminate life on Earth, outer space has no shortage of forces that could wreak havoc on our planet. But there's something in space that is even more...
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!
SciShow
A Strangely Cool Supermassive Black Hole!
In this week's news we discover that Tatooine has got nothing on HD 131399Ab's wide orbit, and there's a some really cool jets coming out of a supermassive black hole.
SciShow
How Big Can Black Holes Grow?
Black Holes are known for consuming everything that falls into them, but is there a point where these galactic devourers can't stomach anymore?
SciShow
Neutron Stars Just Keep Getting Weirder
Neutron stars are some of the strangest things in the universe, but are they the source of the mysterious Fast Radio Bursts? Or is it aliens? Spoilers: probably not aliens.
SciShow
How We Know Star Wars Isn’t A Documentary | Compilation
Plot often trumps reality when portraying space in movies and, as a result, many films are full of inaccuracies. So how much fiction is actually written into some of our favorite movies? Movies mentioned (and potentially spoiled) in this...
SciShow
The Oldest Quasar Ever and the Newest Failed Launch
We have discovered an enormous black hole that’s older and farther away than any we’ve ever seen, and a recent rocket launch did not go as planned.
Crash Course
The Seven Years War Crash Course World History
In which John teaches you about the Seven Years War, which may have lasted nine years. Or as many as 23. It was a very confusing was. The Seven Years War was a global war, fought on five continents, which is kind of a lot. John focuses...
SciShow
Voyager 2’s Notes from Interstellar Space | SciShow News
Voyager 2 is the second object to leave our solar system, which means we now have twice as much information about its edges! And scientists have found a record-breaking black hole.
Crash Course
Black Holes
We’ve covered a lot of incredible stuff, but this week we’re talking about the weirdest objects in space: BLACK HOLES. Stellar mass black holes form when a very massive star dies, and its core collapses. The core has to be more than...
Crash Course
Galaxies, part 2
Active galaxies pour out lots of energy, due to their central supermassive black holes gobbling down matter. Galaxies tend not to be loners, but instead exist in smaller groups and larger clusters. Our Milky Way is part of the Local...
MinutePhysics
What is Gravity
In this episode, we discuss the basic nature of gravity, one of the four fundamental forces in our universe.
Crash Course Kids
Orbits are Odd
Last week we talked about the orbits of the Earth and our Moon. But today we're going to go a little bigger... well, a lot better. Did you know that there is a massive Black Hole at the center of our Galaxy? Or that Pluto's orbit is...
SciShow
Neutron Star, Meet Black Hole
Scientists have observed a collision of two of the universe's most extreme objects. And a mission to Jupiter's moon Europa makes an important step forward.
Curated Video
Cisco CCNA 200-301: The Complete Guide to Getting Certified - Root Guard Lab Demo
New ReviewIn this video, observe a practical demo of configuring Root Guard to prevent unwanted root bridge elections.
The Daily Conversation
Albert Einstein's Gravitational Waves Discovered
New ReviewScientists have confirmed Albert Einstein's 100 year-old theory of gravitational waves, detected using a massive system of instruments called the Laser Interferometer Gravitational-wave Observatory (LIGO).
Curated Video
Encyclopedias
New ReviewA brief description of what encyclopedias are used for and how to use them.
Curated Video
The Insane power of a Hypernova
New ReviewStars represent a celestial battle of two opposing forces, gravity trying to collapse the star, and radiation pressure trying to explode the star. But it comes to an end close to the time that it runs out of fuel. Gravity then collapses...
Curated Video
What Would Happen if You Fell Into a Black Hole?
New ReviewWhat is inside a Black Hole? A black hole is really not a celestial body like a planet or a star. There is really no substance there other than a severely curved space-time. It’a a region in space where matter is condensed to a...
Curated Video
Is Time Travel to the Past Scientifically Possible?
New ReviewTraveling forward in time is not a problem. You're doing that now. Can we travel backward in time? There is a theoretically possible way to do it using wormholes. One solution to general relativity predicts an Einstein Rosen bridge,...
Curated Video
Is the Universe a Conscious Mind? Exploring Superconsciousness
New ReviewWhat if the universe is self-aware? Is there a cosmic superconsciousness? Could it be a giant brain? Is the universe a conscious mind? There is a short but lazy answer, and there is longer but more intriguing answer. The lazy answer is:...