United Launch Alliance Puts STP-3 Launch On Hold

An Atlas V lifts off from Space Launch Complex 41 at Cape Canaveral Space Force Station on May 18 with the SBIRS GEO 5 satellite.
Credit: ULA
CAPE CANAVERAL—United Launch Alliance (ULA) is standing down from its planned June 23 launch of an Atlas V rocket with the Air Force Test Payload-3 (STP-3) to review a potential issue with oscillations of the booster’s upper stage engine nozzle, the company said on June 4. The evaluation started...

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