T+67: Special Preview of MECO Headlines, December 18, 2017
A special preview of the MECO Headlines shows: Elon Musk kinda-sorta-maybe announces the Falcon Heavy demo payload, Russia and China carry out successful military launches, NASA announces some very interesting NextSTEP-2 contracts, OA-8E Cygnus departs ISS, and SpaceX\u2019s SLC-40 is back, baby!