OTD…May 15 and Faith 7

#OTD in 1997…Atlantis launched on the seventh joint docking mission with Russia’s space station Mir

#OTD…Launch of Challenger in 1985 on a Spacelab research flight

Europe’s first mission to Mercury, a quartet of Galileo navigation spacecraft, the world’s first global winds observatory, and a new European weather satellite have arrived at an equatorial launch base in French Guiana in preparation for launches in the coming months.