Vera (Cooper) Rubin (born 23 July1928) is an astronomer who has done pioneering work on galaxy rotation rates. Her discovery of what is known as "flat rotation curves" is the most direct and robust evidence of dark matter.
Lake Afton Public Observatory: Women in Astronomy (http://webs.wichita.edu/lapo/wia.html)
Astrophysics Data System (http://adsabs.harvard.edu/abstract_service.html) - NASA's astronomy abstract service lists all peer reviewed astronomy publications.