[ad_1] Falcon 9 booster has landed on Landing Zone 1 – our 50th landing of a rocket booster! pic.twitter.com/RGwOyJs1Sl — SpaceX (@SpaceX) March 7, 2020 The Dragon spacecraft used for this launch reached the ISS twice in the past, first for a resupply mission in February 2017 and then again in December 2018. Also, the […]