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From Astronomy Magazine: Women in STEM- “Meet Henrietta Leavitt, the woman who gave us a universal ruler” » Edwin Hubble looking through the 100-inch Hooker telescope at Mount Wilson in Southern California, 1929 discovers the Universe is Expanding. Credit: Margaret Bourke-White/Time & Life Pictures/Getty Images.
richardmitnick 11:55 am on February 15, 2019 | Full size is 1200 × 675 pixels Reply
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