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Topic: universe
Revealing the true scale of the universe with VFX
When watching a video like this classic planet and star size comparison, do we really have a clear understanding of just how small we are in the scale of the universe? To better understand the size of our largest star...
Building the Giant Magellan Telescope, the world’s largest telescope
Underneath the University of Arizona’s football stadium are the beginnings of the Giant Magellan Telescope, set to be the largest optical telescope in the world. The Richard F. Caris Mirror Laboratory is the only plac...
Stephen Hawking explains black holes in 90 seconds
What are black holes? What's happening inside of them? You can't tell from the outside... but could you travel through one to find out? From his BBC Reith Lecture and animated by Aardman Studios for BBCRadio4, British...
Flight through the Orion Nebula in visible and infrared light
Explore the Orion Nebula, as seen with both visible light from the Hubble Telescope and infrared light via the Spitzer Space Telescope, with the help of this three-dimensional fly-through. The computer-generated visua...
Eclipses Throughout Our Universe – Out There
An exercise in cosmic geometry. A reminder that we live on one sphere among many, all moving to the laws of Kepler, Newton and Einstein. The moon’s orbit around the Earth is slightly tilted, so the shadow of the new m...
What is Symmetry in Physics?
Symmetry is vital to understanding and predicting how our universe works. The relationship between symmetry and the mechanics of the universe is fundamental to physics. From Noether’s theorem to the new and exciting w...
How small are we in the scale of the universe?
In 1995, scientists pointed the Hubble Telescope at an area of the sky near the Big Dipper. The location was apparently empty, and the whole endeavor was risky – what, if anything, was going to show up? But what came ...
On Light Pollution: The End of Darkness
What is it like to be really in the dark? Not the dark of your closet, or the dark of your room at night, but the deep darkness of there being no electricity for miles and miles around you. If there was no light pollu...
How to Find a Galaxy
How do you find a galaxy? How do you find a thousand galaxies? Astrophysicist Dr. Margaret Geller is a galaxy mapping pioneer. She and her colleagues studied the spatial distribution of galaxies in our universe by sur...
A physical demonstration of gravitational waves
Start with the classic lycra space-time warping demo, add in news of LIGO and The First Observation of Gravitational Waves, then mix it with a drill. In this Ultimate Gravitational Waves Explanation, Steve Mould creat...
Gravitational Waves Explained Using Stick Figures
How are gravitational waves made? In this episode of MinutePhysics, Henry Reich draws up a series of other wave creating scenarios -- water waves, air pressure waves, and radio waves -- to help explain gravitational w...
The Beautiful Relationship Between Physics and Jazz
How is physics like jazz? How is John Coltrane like Albert Einstein? Ask theoretical physicist Stephon Alexander. He sees strong connections between the improvisational nature of jazz and the pursuit of understanding ...
How Far Can We Go? Limits of Humanity – Kurzgesagt
Is there a border we will never cross? Are there places we will never be able to reach, no matter how hard we try? It turns out there are. Even with science fiction technology, we are trapped in our pocket of the univ...
ALMA, a telescope so powerful it can see into the past
There’s a telescope deep in Chile’s Atacama Desert that takes pictures so massive that it requires a supercomputer as powerful as 16 million PCs to decipher the images. This is the Atacama Large Millimeter Array (ALMA...
LIGO & The First Observation of Gravitational Waves – CalTech
On September 14, 2015 at 5:51am ET, the Laser Interferometer Gravitational-Wave Observatory (LIGO) detected ripples in the fabric of spacetime. One hundred years after Albert Einstein predicted the existence of gravit...
Explore the Science Behind Fireworks—and the Galaxy
When you watch fireworks burst with color, you're seeing examples of how stars and galaxies work: Blues from copper, yellows from sodium, bright whites from aluminum, barium greens, and reds made from strontium... The...
The Hubble Space Telescope Reflects the Cosmos
"When the Hubble Space Telescope was launched from the Space Shuttle Discovery in 1990, NASA called it the greatest advance in astronomy since Galileo. Instead, within days it became a laughing stock. Hubble had an ei...
How Many Stars Are There? – It’s Okay to Be Smart
How many stars can our eyes see on a dark night? How many stars can we see with something even more powerful than our eyes? How many stars exist?? And how are grains of sand a part of this?! Joe Hanson and PBS Digital...
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