OTD…June 3, 1965 and the first American walk in space

#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

Dave Scott, Jim Irwin and Al Worden left for the Moon today in 1971 aboard Apollo 15 bound for Hadley rille with the first Lunar Roving Vehicle.

Working outside the International Space Station, NASA astronaut Reid Wiseman and European Space Agency crewmate Alexander Gerst successfully moved a failed ammonia pump module to an external stowage platform, completing a task originally planned for a repair spacewalk last December.