Physics in the Dark: Searching for Missing Matter | World Science Festival
If you believe the world’s leading physicists, the vast majority of matter in the universe is hiding in plain sight. For nearly a century, evidence has mounted that the gravitational pull necessary to keep clusters of galaxies intact, as well as stars within galaxies from flying apart, requires far more matter than we can see—matter, according to the experts, that has eluded our telescopes, because it does not give off light.
Courtesy of World Science Festival on YouTube. Watch on YouTube ↗
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