SpaceX grounds its Falcon 9 rocket after a problem with its upper stage. Will the Crew-12 astronaut mission be affected?

SpaceX has temporarily grounded its Falcon 9 rocket after an upper stage failed to deorbit as planned during a Feb. 2 launch.

4 upper-stage issues in 19 months: When will SpaceX's Falcon 9 rocket return to flight?

For the fourth time in the last 19 months, the upper stage of SpaceX's Falcon 9 rocket experienced a problem during a mission ...
Space Coast Daily

WATCH REPLAY: SpaceX Launches Falcon 9 with 29 Starlink Satellites from Cape Canaveral Space Force Station

SpaceX successfully launched a Falcon 9 carrying 29 Starlink satellites on the Starlink 6-100 mission from Cape Canaveral Space Force Station.
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Falcon 9 rocket launches Starlink satellites before making 550th SpaceX landing

Almost 10 years to the day since it successfully landed its first rocket stage, SpaceX today (Dec. 14) recovered its 550th Falcon 9 booster. The touchdown came after the rocket's first stage had ...