Launch Day! via NASA https://t.co/Kx1T9zDap2 http://pic.twitter.com/9fVPvyeavV
— martinengwicht (@martinengwicht) December 21, 2017
from Twitter https://twitter.com/martinengwicht
learning by doing
Launch Day! via NASA https://t.co/Kx1T9zDap2 http://pic.twitter.com/9fVPvyeavV
— martinengwicht (@martinengwicht) December 21, 2017
from Twitter https://twitter.com/martinengwicht