Vera Rubin dies at 88.

Vera Rubin the discoverer of Dark matter

(July 23, 1928-December 25, 2016) 

"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 

She was first person to state existence of astronomical ignorance aka DARK MATTER. 

She was denied a Nobel despite quality of her work on DarkMatter.

http://www.popsci.com/in-memory-vera-rubin-woman-nobel-priz…

 

http://www.bbc.co.uk/scien…/…/universe/scientists/vera_rubin

 

http://edition.cnn.com/…/vera-rubin-dark-matter-astronomy-…/

 

http://www.amnh.org/…/c…/profile-vera-rubin-and-dark-matter/

 

Article on rotating galaxies cited by more than 1100 articles.
http://articles.adsabs.harvard.edu/cgi-…/nph-iarticle_query…