October 28, 2021

Live coverage: Launch of Delta 4-Heavy aborted seconds before liftoff


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Live coverage of the countdown and launch of a Delta 4-Heavy rocket with the classified NROL-44 payload for the National Reconnaissance Office. Text updates will appear automatically below. Follow us on Twitter. United Launch Alliance’s live launch broadcast begins at 1:52 a.m. EDT (0552 GMT) Thursday, Aug. 27.


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