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Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Sunday, 23-Jul-2023 22:50:13 UTC Stephen Sekula From mcnees@mastodon.social on Mastodon: Astronomer Vera Rubin was born # OTD in 1928. Her work on galactic rotation curves became one of the main pieces of evidence for the existence of dark matter, and she deserved a Nobel Prize for it. Image: Vassar College / Emilio Segrè Visual Archives