PBS
What Happens If We Nuke Space?
New ReviewEMPs aren’t science fiction. Real militaries are experimenting on real EMP generators, and as Starfish Prime showed us, space nukes can send powerful EMPs to the surface. So what exactly is an EMP, and how dangerous are they?
SciShow
The Spacecraft That Wasn't Designed To Land, But Did
Many space missions take billions of dollars and decades of work to get develop, but 25 years ago this spacecraft delivered stunning results on a shoestring budget and a minimal development timeline.
PBS
Can We Survive the Destruction of the Earth? ft. Neal Stephenson
What do we do to protect ourselves from extinction level events? And what if some of those events are unavoidable? Can we survive adrift in space? Find out in this episode of Space Time.
SciShow
4 Tiny Missions Answering the Biggest Questions in Astrophysics
The Astrophysics Pioneers program is funding four innovative new missions that read like a best-hits album of the most exciting astronomical frontiers: from galaxy evolution and exoplanets, to neutron star mergers and astroparticle physics.
SciShow
From Thunderstorms to Black Holes: 4 Natural Particle Accelerators
We've been making particle accelerators for more than a century and have accelerated particles to more than 99.9999% the speed of light. But our accelerators are nothing compared to some of the ones we've found in nature!
SciShow
Fermi Bubbles Our Galaxy’s Giant Gamma Ray Mystery
Fermi bubbles are made up of gamma rays, but where they came from is still up for debate. Did they come from a star-forming region, or the black hole at the middle of our galaxy?
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
Spectrum
A continuous range of frequencies of electromagnetic radiation, such as that produced when white light is refracted through a prism. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and...
Curated Video
Cold War to Gamma Rays
When the Americans tried to detect radiation from Soviet bombs, they in fact discovered gamma ray bursts - radiation from deep space. Physics - Universe - Learning Points. During the Cold War, the US suspected the Soviets of testing...
Curated Video
Mars: The Search for Water
We know that Mars once had a landscape with oceans and rivers, but what happened to it? Physics - Universe - Learning Points. Although Mars is a freezing dry world today, it is thought the planet was once like Earth. If liquid water once...
Curated Video
Gamma ray
High energy electromagnetic radiation, with extremely short wavelengths, often smaller than an atom. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....
Curated Video
The Electromagnetic Radiation Spectrum
This video will explain the electromagnetic radiation spectrum, what it is, and how it can be used to observe space objects.
NASA
Gravity Assist: This Asteroid Is Metal, With Lindy Elkins-Tanton
Scientists will soon have the opportunity to visit a unique object in the asteroid belt called Psyche, which may be the exposed metallic core of a planetary body that stopped growing before it became a big planet like Earth. Dr. Lindy...
NASA
NASA | Fermi Detects First Gamma-ray Pulsar in Another Galaxy
Researchers using NASA's Fermi Gamma-ray Space Telescope have discovered the first gamma-ray pulsar in a galaxy other than our own. The object sets a new record for the most luminous gamma-ray pulsar known. The pulsar lies in the...
AllTime 10s
10 Ways The Universe Could Destroy Us At Any Moment
All of this Trump and Kim Jong Un drama on earth is mere child's play compared to these ways that our own Universe could wipe us out today!
NASA
NASA's Fermi Satellite Celebrates 10 Years of Discoveries
On June 11, NASA's Fermi Gamma-ray Space Telescope celebrates a decade of using gamma rays, the highest-energy form of light in the cosmos, to study black holes, neutron stars, and other extreme cosmic objects and events. Fermi's main...
NASA
NASA Missions Unveil Magnetar Eruptions in Nearby Galaxies
On April 15, a brief burst of high-energy light swept through the solar system, triggering instruments on many NASA missions. Now, multiple international science teams conclude that the blast came from a supermagnetized stellar remnant...
NASA
NASA | Blazar Bonanza
A long time ago in a galaxy half the universe away, a flood of high-energy gamma rays began its journey to Earth. When they arrived in April, NASA's Fermi Gamma-ray Space Telescope caught the outburst, which helped two ground-based...
NASA
NASA | Highlights of Swift's Decade of Discovery
NASA's Swift satellite rode to orbit aboard a Delta II rocket on November 20, 2004, and it's still going strong. Swift's unique instrumentation allows it to quickly locate an interesting high-energy outburst, automatically determine its...
NASA
NASA | Fermi Detects Gamma Rays from a Solar Flare
During a powerful solar blast in March, NASA's Fermi Gamma-ray Space Telescope detected the highest-energy light ever associated with an eruption on the sun. The discovery heralds Fermi's new role as a solar observatory, a powerful new...
NASA
NASA | Fermi Finds Radio Bursts from Terrestrial Gamma-ray Flashes
Lightning in the clouds is directly linked to events that produce some of the highest-energy light naturally made on Earth: terrestrial gamma-ray flashes (TGFs). An instrument aboard NASA's Fermi Gamma-ray Space Telescope was recently...
NASA
NASA's Fermi Mission Shows How Luck Favors the Prepared
In 2017, NASA's Fermi Gamma-ray Space Telescope played a pivotal role in two important breakthroughs occurring just five weeks apart. But what might seem like extraordinary good luck is really the product of research, analysis,...
NASA
NASA's Fermi Finds the Farthest Blazars
NASA's Fermi Gamma-ray Space Telescope has identified the farthest gamma-ray blazars, a type of galaxy whose intense emissions are powered by supersized black holes. Light from the most distant object began its journey to us when the...
NASA
NASA's Fermi Catches Gamma-ray Flashes from Tropical Storms
About a thousand times a day, thunderstorms fire off fleeting bursts of some of the highest-energy light naturally found on Earth. These events, called terrestrial gamma-ray flashes (TGFs), last less than a millisecond and produce gamma...