Remembering Ron McNair - 25th Anniversary of Challenger disaster
Remembering the Challenger disaster
Jeff Hoffman tribute to astronaut Ron McNair
Challenger astronaut Ron McNair delivers commencement address at the University of South Carolina
Ronald Erwin McNair was an American NASA astronaut and physicist. He died during the launch of the Space Shuttle Challenger on mission STS-51-L, in which he was serving as one of three mission specialists in a crew of seven.