American astronomer and physicist
Vera Rubin (23 July 1928 – 25 December 2016) was an American astronomer who pioneered work on galaxy rotation rates. Her magnum opus was the uncovering of the discrepancy between the predicted angular motion of galaxies and the observed motion, by studying galactic rotation curves. This phenomena became known as the galaxy rotation problem.
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There is one alternative to dark matter, and that is the assumption that Newton's laws don't hold over distances as great as galaxies. But we know that Newton's laws hold over a very large domain. And virtually one hundred percent of the physics and astronomy community believes that there is matter in the universe that does not radiate.
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I'm not a theologian, and I must say honestly that Vatican astronomers' views [on astronomy] are entirely in accord with ours. I'm not aware of any Church positions that contradict modern science. In my own life, my science and my religion are separate. I'm Jewish, and so religion to me is a kind of moral code and a kind of history. I try to do my science in a moral way, and, I believe that, ideally, science should be looked upon as something that helps us understand our role in the universe.
I live and work with three basic assumptions, 1) There is no problem in science that can be solved by a man that cannot be solved by a woman. 2) Worldwide, half of all brains are in women. 3) We all need permission to do science, but, for reasons that are deeply ingrained in history, this permission is more often given to men than to women.