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UNSPECIFIED LOCATION - NOVEMBER 11: (FILE PHOTO) Space Shuttle Challenger crew members gather for an official portrait November 11, 1985 in an unspecified location. (Back, L-R) Mission Specialist Ellison S. Onizuka, Teacher-in-Space participant Sharon Christa McAuliffe, Payload Specialist Greg Jarvis and mission specialist Judy Resnick. (Front, L-R) Pilot Mike Smith, commander Dick Scobee and mission specialist Ron McNair. The Challenger and its seven member crew were lost seventy three seconds after launch when a booster rocket failed. (Photo by NASA/Getty Images)
UNSPECIFIED LOCATION - NOVEMBER 11: (FILE PHOTO) Space Shuttle Challenger crew members gather for an official portrait November 11, 1985 in an unspecified location. (Back, L-R) Mission Specialist Ellison S. Onizuka, Teacher-in-Space participant Sharon Christa McAuliffe, Payload Specialist Greg Jarvis and mission specialist Judy Resnick. (Front, L-R) Pilot Mike Smith, commander Dick Scobee and mission specialist Ron McNair. The Challenger and its seven member crew were lost seventy three seconds after launch when a booster rocket failed. (Photo by NASA/Getty Images)

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Rendez-vous Houston: 30 years later

On 5 April 1986, 1.3 million people gathered for the world's largest concert, in celebration of NASA.

Rendez-vous Houston: 30 years later

On 5 April 1986, 1.3 million people gathered for the world's largest concert, in celebration of NASA.