On this date…March 4 launch of STS-62

#OTD in 2009…Discovery launches on her silver anniversary mission

On this day in 2010, Atlantis on her next-to-final mission launches with Russia’s Rassvet mini module for the International 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.