This week in SF history— November 21 1960: Mercury MR-1’s very short flight (youtube.com) (wikipedia.org)Spaceflight news— SLS program may be voluntarily ended. (businessinsider.com) (nextbigfuture.com)— SpaceX will not be upgrading Falcon 9 second stage. (spacenews.com) (twitter.com/elonmusk)Short & Sweet— The FCC approves four large satellite constellations. (spacenews.com)— Russia is looking into reusable rockets too. (parabolicarc.com)— OSIRIS-REx unfurls its sampling arm for first time en route to Bennu (arstechnica.com)