Launch of Shuttle Mission STS50. Space Shuttle Columbia thunders toward a thin veil of cloud at the start of Mission STS50 on 25 June 1992. This was the first flight of Columbia after being converted as an Extended Duration Orbiter (EDO). STS50 set a Shuttle endurance record of almost 14 days, carrying the US Microgravity Laboratory (USML) in its payload bay. STS50 landed at Kennedy Space Center on 9 July 1992.
