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If all goes well, the team will start a 46-hour 10-minute countdown at 10:23 a.m. EDT Aug. 27, setting the stage for blastoff at 8:33 a.m. on Monday, Aug. 29, kicking off a 42-day flight to send an unpiloted Orion crew capsule around the moon and back. https://t.co/KQDmzKnqlq — PolitiTweet.org