TED-Ed
TED-Ed: Something weird is happening in our galaxy | Ashkbiz Danehkar
In 2010, NASA announced the discovery of a never-before-seen galactic object: two gigantic gaseous bubbles, each emanating an impressive 25,000 light years from the center of the Milky Way. Astronomers were perplexed: what created these...
SciShow
The Mystery of the Star That Wasn't There
In the 1970s, astronomers discovered a mysterious source of gamma rays that, 50 years later, still hasn’t revealed all of its secrets.
PBS
Was the Milky Way a Quasar?
The Milky Way galaxy is relatively calm by the destructive standards of the rest of the Universe, and compared to its own very violent past. But just recently we discovered that its violent past was much more recent than we thought - and...
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
How to Survive a Nuclear Attack
If you want to be prepared for a nuclear attack, here’s a science-based guide to help you get there.
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!
TED Talks
TED: Wireless data from every light bulb | Harald Haas
What if every light bulb in the world could also transmit data? At TEDGlobal, Harald Haas demonstrates, for the first time, a device that could do exactly that. By flickering the light from a single LED, a change too quick for the human...
SciShow
The Biggest Water Reservoir in Space
In the late 2000s, scientists looking deep into space discovered the largest known water reservoir in the universe inside a quasar, orbiting a supermassive black hole. Learn more about quasars and what this water can tell us about the...
PBS
The Oh My God Particle
In 1991 a single atomic nucleus slammed into our atmosphere with the intensity of a macroscopic object. It's been named The Oh-My-God particle.
SciShow
This New Star Is a Ticking Time Bomb - SciShow News
We might be sitting next to the largest bomb in the galaxy and NASA's InSight lander will touch down on Mars this Monday!
PBS
Neutron Stars Collide in New LIGO Signal?
Last year LIGO announced the detection of gravitational waves from the merger of two black holes. The science world went a little crazy. Only a few weeks ago a new rumour emerged: that LIGO had, for the first time, spotted gravitational...
Bozeman Science
Light and Matter
In this video Paul Andersen explains why light is important in probing matter. Light travels in photons and the energy of individual photons is determined by Planck's equation. Infrared spectroscopy is useful in detecting the vibrations...
TED-Ed
TED-ED: Is radiation dangerous? - Matt Anticole
When we hear the word radiation, it's tempting to picture huge explosions and frightening mutations. But that's not the full story - radiation also applies to rainbows and a doctor examining an X-ray. So what is it, really, and how much...
SciShow
The Gamma Ray Burst of 775
About 1200 years ago, Earth may have experienced one of the rarest and most powerful cosmic events a planet can be exposed to: a gamma-ray burst. If it did, well, let's just say that we, as living things on Earth, are lucky it wasn't worse.
Crash Course
Gamma-Ray Bursts
Gamma-ray bursts are not only incredible to study, but their discovery has an epic story all its own. Today Phil takes you through some Cold War history and then dives into what we know. Bursts come in two rough varieties: Long and...
TED-Ed
TED-ED: Why is NASA sending a spacecraft to a metal world? - Linda T. Elkins-Tanton
In 2026, an unmanned NASA spacecraft is scheduled to arrive at 16 Psyche, a massive, metallic asteroid floating somewhere between the orbits of Mars and Jupiter. Why is NASA so interested in this heavy metal asteroid? Are we going to...
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?
SciShow
What We’re Learning from the Brightest Supernova Ever Seen - SciShow News
It’s been a great week for space explosions! Astronomers learned more about the mechanism that causes novas by looking at the nova V906 Carinae, and the brightest supernova ever recorded shed some new light on pulsation pair-instability.
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.
Crash Course
Nuclear Physics: Crash Course Physics
It's time for our second to final Physics episode. So, let's talk Einstein and Nuclear Physics. What does E=MC2 actually mean? Why is it so useful to us as physicists and humans? In this episode of Crash Course Physics, Shini sits down...
Bozeman Science
PS4B - Electromagnetic Radiation
In this video Paul Andersen describes some of the properties of electromagnetic radiation. The electromagnetic spectrum varies by wavelength from radio waves to gamma rays. We only see a portion of the spectrum known as visible light. ...
SciShow
IDTIMWYTIM Radiation
Hank explains the whole story about radiation - the good, the extremely helpful, and the bad.
Bozeman Science
Electromagnetic Waves
In this video Paul Andersen details the characteristics of electromagnetic waves. Electromagnetic waves are transverse waves that can move through both mediums and vacuums. The electric and magnetic fields oscillate perpendicular to the...
Bozeman Science
Electromagnetic Radiation
In this video Paul Andersen details the waves in electromagnetic radiation. There is an inverse relation between the wavelength and frequency of electromagnetic waves. Electromagnetic radiation includes gamma rays, x-rays, infrared...