NASA @NASA
The countdown to T-0 for @OrbitalATK’s #Antares rocket, carrying @ISS_Research & supplies to the @Space_Station is on schedule for a 5-minute launch window opening at 4:3am ET. The probably of favorable launch-time weather has improved to 75%. Details: https://t.co/NajQtWBXi3 https://t.co/ha5a6B — PolitiTweet.org