Years: 1928 - 2016

Hometown: Philadelphia, PA

Education: Ph.D. in Astronomy

Occupation: Astronomer

Expeditions: Into space, using telescopes in the USA and Chile. Also visited astronomers and telescopes at the South Pole.

Favorite Place to Be: At an astronomical observatory

Best Discovery: Discovering that most of the matter in the universe is “dark matter”

Favorite Items in the Field: A telescope

Personal Hero: Maria Mitchell, 1818-1888, the first US woman astronomer

Hobbies: Family

Book: Bright Galaxies, Dark Matters

Advice: Don’t quit. You can do it.

Published Work: