14 – Jeff Williams

International Space Station Commander Jeff Williams set a new U.S. spaceflight record, passing the 520-day endurance record set for cumulative time spent in orbit.

Williams seen here on a successful spacewalk, that marks a major milestone on the road to the start of Commercial Crew missions of Boeing’s CST-100 Starliner and SpaceX’s Dragon 2 spacecraft, keeping the U.S. Segment staffed until the end of the program in the 2020s.

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  • 17 – Shannon Walker

    Russian cosmonaut Fyodor Yurchikhin and NASA astronaut Shannon Walker, both Expedition 24 flight engineers, attired in their Russian Sokol launch and entry suits, occupy their seats in the Soyuz TMA-19 spacecraft docked to the International Space Station.

  • 27 – Piers Sellers

    STS-112 Mission specialist Piers Sellers is photographed on the end of the Space Station Remote Manipulator System (SSRMS) arm as he tethers himself to the External TV Camera Group (ETVCG) on the Destiny laboratory module (LAB1/C2-05) of the International Space Station (ISS).

  • 18 – Jessica Meir

    NASA astronaut Jessica Meir gives a thumbs up after she, Roscosmos cosmonaut Oleg Skripochka and NASA astronaut Andrew Morgan landed in their Soyuz MS-15 spacecraft in a remote area near the town of Zhezkazgan, Kazakhstan on Friday, April 17, 2020.

  • 21 – Gemini-Titan VIII

    Commander Neil Armstrong (right) and pilot David R. Scott prepare to board the Gemini-Titan VIII.