HEADLINE: Early Hints of the Invisible. GUEST: Govert Schilling. SUMMARY: Schilling introduces pioneers Kapteyn, Oort, and Zwicky, whose early 20th-century observations of stellar motions and galaxy clusters first hinted at dark matter's existence.

Season 8, Episode 435,   Feb 09, 02:57 AM

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HEADLINE: Early Hints of the Invisible. GUEST: Govert Schilling. SUMMARY: Schilling introduces pioneers Kapteyn, Oort, and Zwicky, whose early 20th-century observations of stellar motions and galaxy clusters first hinted at dark matter's existence. ESA EUCLID, 2020
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HEADLINE: Spinning Galaxies and Stable Halos. GUEST: Govert Schilling. SUMMARY: Ostriker's theory of galactic halos and Rubin and Ford's observations of flat rotation curves solidified the case for unseen matter stabilizing galaxies.
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