Ellison Onizuka, American engineer, and astronaut (died 1986)

Ellison Shoji Onizuka was an American astronaut, engineer, and U.S. Air Force flight test engineer from Kealakekua, Hawaii, who successfully flew into space with the Space Shuttle Discovery on STS-51-C. He died in the destruction of the Space Shuttle Challenger, on which he was serving as Mission Specialist for mission STS-51-L. Onizuka was the first Asian American and the first person of Japanese ancestry to reach space.

June 24 is the 175th day of the year in the Gregorian calendar; 190 days remain until the end of the year.