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Space is Full of Junk. Here’s How to Clean It Up…
We know pollution is a problem on earth, but we’re filling space with our junk too. And if we don’t figure out a way to clean up space junk, we could end our interstellar dreams before they even get started. Today, we’re visiting some cool engineers in Switzerland to learn about the space junk problem…
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Origins of the Universe 101 | National Geographic (video)
How old is the universe, and how did it begin? Throughout history, countless myths and scientific theories have tried to explain the universe’s origins. The most widely accepted explanation is the big bang theory. Learn about the explosion that started it all and how the universe grew from the size of an atom to encompass…
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What Nanomaterials Are Used in Space?
Future space missions aim to reach Mars and beyond, but many challenges must be overcome before this can be achieved – and nanomaterials will play a critical role. From bio-nano robot-laced spacesuits, to radiation shielding, to new means of travelling into space, research employing nanomaterials is underway. https://www.azonano.com/article.aspx?ArticleID=4983
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Content of the Universe Pie Chart (Chart)
Planck data reveals that the universe’s contents include 4.9% ordinary matter, or atoms, the building blocks of stars and planets. Dark matter comprises 26.8% of the universe. This matter, different from atoms, does not emit or absorb light. It has only been detected indirectly by its gravity. 68.3% of the universe, is composed of “dark…
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Quantum SHAPE-SHIFTING: Neutrino Oscillations (video)
This video is about the phenomenon of neutrino oscillations, which is where neutrinos can change flavors (ie, change between electron, muon, or tau neutrinos) because those interaction states are in non-trivial superpositions of the free traveling/mass eigenstates (𝜈1, 𝜈2 and 𝜈3).
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Astronomy enters a new age thanks to multi-messenger signals (article)
Cosmic rays, neutrinos, photons, and gravitational waves: Each of these signals carries a message. What can they tell us?
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Voyage into the world of atoms (video)
This animation shows the structure of matter at smaller and smaller scales. Zooming into a human hair, we pass through hair cells, fibril structures, keratin molecules, Carbon atoms, nuclei, neutrons, protons, and finally quarks. The Standard Model explains how the basic building blocks of matter interact, governed by four fundamental forces. Find out more: http://home.cern/…/physi…/standard-model
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What are gravitational waves? – Amber L. Stuver (video)
Ted Ed video: In September 2015, scientists witnessed something never seen before: two black holes colliding. Both about 30 times as big as our Sun, they had been orbiting each other for millions of years. A fraction of a second before the crash, they sent a vibration across the universe at the speed of light…
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Light seconds, light years, light centuries: How to measure extreme distances – Yuan-Sen Ting (video)
Ted Ed video:When we look at the sky, we have a flat, two-dimensional view. So how do astronomers figure the distances of stars and galaxies from Earth? Yuan-Sen Ting shows us how trigonometric parallaxes, standard candles and more help us determine the distance of objects several billion light years away from Earth. https://ed.ted.com/lessons/how-do-we-measure-distances-in-space-yuan-sen-ting Space, Light,…
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How do we study the stars? – Yuan-Sen Ting
Ted Ed video:Our best technology can send men to the Moon and probes to the edge of our solar system, but these distances are vanishingly small compared to the size of the universe. How then can we learn about the galaxies beyond our own? Yuan-Sen Ting takes us into deep space to show how astronomers…
