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'Most metal of rockets' Delta IV Heavy soars for final time, launching top secret missionOn Tuesday, United Launch Alliance completed the bittersweet sendoff, marking the last mission of the Delta rocket family ... engines that provide a combined 2.1 million pounds of thrust at ...
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It's the final countdown for Delta IV Heavy, United Launch Alliance's powerful rocket. You can "see" it on your iPhone, Android, flatscreen or tablet.
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