OTD…Oct. 23 and STS-120

#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 1996…Columbia launched on a life sciences and microgravity flight.

#OTD in 2007…The launch of Atlantis with a power truss for International Space Station