OTD…July 12 and STS-104

#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.

#OTD in 2009…Endeavour launched to complete the Japanese segment of the International Space Station