Three Expedition 54 crew members are set to launch Sunday at 2:21am ET and take a two-day trip to their new home in space. Live @NASA TV coverage begins at 1:15am Got questions? #AskNASA https://t.co/yuOTrYN8CV pic.twitter.com/L8nNSyMEuN

— Intl. Space Station (@Space_Station) December 16, 2017