SciShow
How to Kill a Galaxy
Our Milky Way galaxy is alive and well, producing new stars all the time. But there’s another group of galaxies out there, populated only by venerable red dwarf stars - the young stars are nowhere to be seen. In effect, these galaxies...
PBS
Kronos: Devourer Of Worlds
What happens when a star eats its planets? Find out on today's Space Time Journal Club.
PBS
Telescopes of Tomorrow
The telescopes of tomorrow will see in infrared and ultraviolet. They will peer through space and scan across time. They will allow us to find new supernovae, spot potentially hazardous asteroids, better understand dark energy and peer...
SciShow
The Fermi Paradox and Our Search for Alien Life
At least some advanced civilizations might be producing tons of waste heat by now. And researchers are looking for them.
SciShow
Are Aliens Signaling Us?
I'm not saying it's aliens....and it's probably not aliens. Also, an update about the most recent SpaceX explosion!
SciShow
There’s a Birth Control for Stars
Black holes are already pretty extreme, but some stand out among their peers, driving cosmic engines that outshines the rest of the galaxy and even serving as birth control for stars!
SciShow
The Invisible Gas That Gave Us Galaxies
More than half of all the matter in the universe is out in the dark, 'empty space.' Although it's basically invisible, the intergalactic medium has a lot to tell us about the stuff we can see.
Bozeman Science
The Bohr Atom
In this video Paul Andersen describes the major parts of an atom and explains how the Bohr Model more accurately represents the location of electrons around the nucleus. Niels Bohr refined the Rutherford model to account for spectra.
Bozeman Science
Atomic Models
In this video Paul Andersen explains how the atomic model has changed over time. A model is simply a theoretical construct of phenomenon and so when we receive new data we may have to refine our model. Ionization energy data resulted in...
Crash Course
Stars
Today Phil’s explaining the stars and how they can be categorized using their spectra. Together with their distance, this provides a wealth of information about them including their luminosity, size, and temperature. The HR diagram plots...
Curated Video
Drawbacks of Rutherford's Theory
Rutherford's Nuclear Model: Limitations and Developments • Stability of Electrons in Orbit: The model failed to account for the continuous emission of electromagnetic radiation, indicating a flaw in the model. • Inability to Explain...
Curated Video
Spectroscopy
A technique that uses a prism to split the light coming off an object or atom. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary...
Curated Video
Prism
A transparent object with flat surfaces that refracts light. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce...
Curated Video
Dimensions of Cross-Cultural Differences: 10 of the Biggest
We can think of cross-cultural differences as different average positions along a number of scales from one extreme to another. Let’s look at ten of the most important of these scales.
Financial Times
Can society turn down damaging levels of light pollution?
FT Rethink - Artificial light is proving to be an ever-growing threat to biodiversity. It's harmful to pollinating insects, bats and a host of other creatures, including zooplankton, and remains a crucial part of the aquatic food chain....
Curated Video
GCSE Physics - What is Red Shift? #87
This video answers: - What is red shift? - How did we discover red shift? - Why is space stretching - Why is the universe expanding - How to we know the universe is expanding Exam board specific info: AQA - Separate/triple science only...
TLDR News
Housing Minister Robert Jenrick’s Planning Scandal: Cash-for-Favours or Coincidence? - TLDR News.
Government Housing Minister Robert Jenrick has been catching a lot of media attention in the last month or two - with some of his old decisions coming to light and looking a little... suspect. Most notable among these is his approval of...
Next Animation Studio
The Sun will someday destroy the asteroid belt before it dies
Billions of years from now, the Sun will exhaust its hydrogen fuel and enter what astronomers call the ‘giant branch’ phase.
NASA
NASA | IRIS: A Slice of Light
On June 27, 2013, NASA launched IRIS, the Interface Region Imaging Spectrograph. IRIS gives us our first detailed image of a layer of the sun’s atmosphere called the chromosphere. Boasting the highest temporal and spatial resolution to...
Catalyst University
Quantum Mechanics | The Hydrogen Line Spectrum
Introductory video to the hydrogen line spectrum, which in part led to the initial development of quantum mechanics.
NASA
Exploring the Solar System: Lucy Goes to Space
Discover the mysteries of the solar system through the eyes of the Lucy mission and its team members. This first episode features Deputy Principal Investigator Cathy Olkin, who discusses Lucy's journey out to explore the Trojan asteroids...
FuseSchool
PHYSICS - Astrophysics - Red Shift
The world is said to be a big place, but the universe is much bigger and what’s more, it’s expanding all the time. How do we know this? Because of the evidence provided by red shift.
Getty Images
Triangular prisms splitting rays of white light into constituent colours.
This occurs because the light is refracted when it passes from the air to the glass, as the speed of light in glass is lower than that in air. Light with a shorter wavelength, at the blue end of the spectrum, is refracted more than the...
Curated Video
Condoleezza Rice comments on Latin American issues
1. Wide shot Condoleezza Rice enters briefing room
2. Media
3. SOUNDBITE (English) Condoleezza Rice, National Security Adviser:
"There are some who would talk about amnesty. The President simply believes that an automatic path to...