OTD…May 18 and launch of Apollo 10

Today in 1996…The launch of Columbia and the ill-fated Tethered Satellite System. Watch the liftoff:

#OTD…Launch of Endeavour in 2001 to deliver Canadarm2 to the space station

#OTD in 2007…NASA’s Dawn probe launched to explore the uncharted worlds of Vesta and Ceres in the heart of the asteroid belt.