Gerard K. O'Neill

American physicist and futurologist (1927–1992).

Born February 6th, 1927 in Brooklyn.

Died April 27th, 1992 at 65 years old in Redwood City (leukemia).

Occupations
astronomer, astrophysicist, physicist, university teacher

No one is actually dead until the ripples they cause in the world die away. Terry Pratchett