The big question is, does the ASETS-II experiment alone warrant a 600-day-and-counting space flight, or is the X-37B doing something else up there? https://t.co/bSSJbU36cP
— Popular Mechanics (@PopMech) July 14, 2019
Let's seem them aliens!
Found on twitter (https://twitter.com/PopMech/status/1150419860834455553) | Posted: 2019-07-14 10:09:41
Tagged: space NASA air force planes space shuttle