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

#OTD…Launch of a 1994 Space Radar Lab mission on Endeavour

Two astronauts plan to venture outside the International Space Station Friday, taking over from earlier robotic arm operations to help replace a set of batteries used to store power from one of the lab’s four sets of solar arrays.

#OTD in 1998…Discovery launched John Glenn’s return to space