Dr. Bart J. Bok, Dutch-born astronomer, is seen Feb. 11, 1942, in New Orleans. (AP Photo)
Lived in Tucson: 1966-83
Why he's famous: Science — astronomy
Notable accomplishment: Bok is most well known for studying the structure and evolution of the Milky Way galaxy. He also discovered Bok globules — dense, small, dark clouds of interstellar gas and dust. He suggested that Bok globules might be stars that haven't fully formed yet.
Bok transformed the UA's Steward Observatory into one of the world's most prestigious astronomy institutes. He also had a large role in constructing the 90-inch telescope at Kitt Peak National Observatory.
