<page_title> Space Shuttle Discovery </page_title> <section_title> Flights listing </section_title> <table> <cell> September 29, 1988 <col_header> Date </col_header> </cell> <cell> STS-26 <col_header> Designation </col_header> </cell> <cell> Return to flight after Space Shuttle Challenger disaster, launched TDRS. <col_header> Notes </col_header> </cell> <cell> July 26, 2005 <col_header> Date </col_header> </cell> <cell> STS-114 <col_header> Designation </col_header> </cell> <cell> First "Return To Flight" mission since Space Shuttle Columbia disaster; International Space Station (ISS) supplies delivery, new safety procedures testing and evaluation, Multi-Purpose Logistics Module (MPLM) Raffaello. <col_header> Notes </col_header> </cell> <cell> July 4, 2006 <col_header> Date </col_header> </cell> <cell> STS-121 <col_header> Designation </col_header> </cell> <cell> Second "Return To Flight" mission since the Space Shuttle Columbia disaster; International Space Station (ISS) supplies delivery, test new safety and repair techniques. <col_header> Notes </col_header> </cell> </table>
The Discovery flew all three "return to flight" missions after the Challenger and Columbia disasters: STS-26 in 1988, STS-114 in 2005 and STS-121 in 2006.