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Danh ngôn của Vera Rubin (Sứ mệnh: 2)

There is no problem in science that can be solved by a man that cannot be solved by a woman.
In a spiral galaxy, the ratio of dark-to-light matter is about a factor of ten. That's probably a good number for the ratio of our ignorance to knowledge. We're out of kindergarten, but only in about third grade.