The U.S. Air Force has delayed the launch date of its next Boeing Wideband Global Satcom (WGS) satellite owing to additional work needed to mitigate possible risk discovered in the last Delta IV rocket launch, during which the RL10B-2 upper stage engine malfunctioned. The WGS launch was slated for February. It is set to take place no earlier than March 28, says U.S. Air Force Lt. Connie Dillon, a spokeswoman for the service’s Space Command. At issue is how to avoid a repeat of the ...

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