OTD…June 2 and STS-91

#OTD in 1994…Discovery launched to develop new techniques for monitoring Earth’s environment from space…and in 2006…Construction of the space station resumed as Atlantis delivered a power-generating truss

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

Scott Carpenter launched atop an Atlas rocket to become the second American to orbit the Earth today in 1962, flying for 4 hours and 39 minutes aboard Aurora 7 while making three revolutions of the globe.