Thursday, 30 January 2020

NASA Day of Remembrance


Amy Resnik touches the Space Shuttle Challenger Memorial after a wreath laying ceremony as part of NASA’s Day of Remembrance, Thursday, Jan. 30, 2020, at Arlington National Cemetery. via NASA https://ift.tt/2Ocv1Rg

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Water Droplet Science

NASA astronaut Don Pettit demonstrates electrostatic forces using charged water droplets and a knitting needle made of Teflon. via NASA htt...