OTD…June 5 and STS-40

#OTD in 2001, Discovery launched on STS-102 to exchange crews aboard the International Space Station

The flight of Gemini 4 launched today in 1965 for NASA’s first Extra Vehicular Activity spacewalk by Ed White on a four-day orbital mission with commander Jim McDivitt.

#OTD…Launch of Challenger in 1985 on a Spacelab research flight