Ursula B. Marvin

Ursula Bailey Marvin (August 20, 1921 – February 12, 2018) was an American planetary geologist and author. She worked for the Smithsonian Astrophysical Observatory. 
She won the 1997 Lifetime Achievement Award from Women in Science and Engineering. Asteroid (4309) Marvin is named in her honour.
Marvin died at a retirement home in Concord, Massachusetts on February 12, 2018 at the age of 96.