OTD…April 5 launches of STS-37 and 131

#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…The maiden launch of shuttle Endeavour in 1992 to rescue the Intelsat 603 satellite

#OTD in 1993…Endeavour launched a new NASA Tracking and Data Relay Satellite.