This week in SF history— March 17, 1958 the US Naval Research Laboratory launched Vanguard 1 (wikipedia.org) — Thanks to another Ben for the assist (twitter.com/chairboy)Spaceflight news— Hayabusa2 touches down on Ryugu (planetary.org) (planetary.org)(hayabusa2.jaxa.jp) — Sampling Process (hayabusa2.jaxa.jp) (youtube.com) (PDF: hayabusa2.jaxa.jp) — Status blog (hayabusa2.jaxa.jp)Short & Sweet— Crew Dragon returns safely (nasaspaceflight.com) (spacenews.com) (youtube.com)— EELV comes to an end, but in name only. (spaceflightnow.com)— MAVEN begins aerobraking to a lower orbit (nasaspaceflight.com)Questions, comments, corrections— twitter.com/MarkChica: Minuteman III, actually does use hypergolic fuel, MMH and N2O4, not as it’s main fuel, but in its PSRE (Propulsion System Rocket Engine).Interview: Anthony Scodary— Gridspace.com— Scodary.com— twitter.com/gridspaceinc