Live coverage: Kennedy Space Center to reopen Friday

Confronted with pesky problems in the Falcon 9 rocket’s helium pressurization system, SpaceX has shuffled the order of the next two launches, choosing to go ahead with the liftoff of a Dragon supply ship on a cargo delivery flight to the International Space Station around April 10.

Mission leaders Tuesday gave approval for rollout of the United Launch Alliance Atlas 5 rocket to its pad on Wednesday morning, leading to liftoff Thursday evening of a NASA probe to rendezvous with an asteroid and bring a sample back to Earth.

A SpaceX Falcon 9 rocket took off from Kennedy Space Center’s launch pad 39A on Thursday, then its first stage booster touched down on a nearby landing target after sending a U.S. Air Force X-37B spaceplane toward orbit.