United Launch Alliance's powerful Delta IV Heavy rocket is scheduled to fly for the second-to-last time early Wednesday morning (June 21), and you can watch the liftoff live.
Watch Delta IV Heavy rocket launch US spy satellite on penultimate mission early Wednesday
SPACE.com - 20 Jun 2023 19:30
United Launch Alliance's powerful Delta IV Heavy rocket is scheduled to fly for the second-to-last time early Wednesday morning (June 21), and you can watch the liftoff live.
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