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.— Vera Rubin
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.
