This week in SF history— 12 September 1959: Launch of Luna 2 (wikipedia.org)Spaceflight news— Chandrayaan-2’s successful orbiter mission? (space.com) (reddit.com) — Doppler curves (twitter.com/cgbassa) — Lander crash site located (thehindu.com) (ndtv.com) — Aeolus dodges a Starlink. (space.com)Short & Sweet— Target marker operation and dress rehearsal postponed for Hayabusa2 (hayabusa2.jaxa.jp)— WFIRST passes PDR (spacenews.com)