Shuttle Atlantis unwrapped ahead of public debut

A Falcon 9 rocket is again standing upright on launch pad 39A at NASA’s Kennedy Space Center in Florida after ground teams lowered the booster Friday to swap out mice heading to the International Space Station for medical experiments.

Launch preparations for the SES 10 communications satellite, the first spacecraft to ride a reused Falcon 9 booster to space, are on track for a late March blastoff from Florida, officials said.

Using a Falcon 9 booster flying for a record ninth time, SpaceX’s swift sequence of launches continued Sunday with a predawn liftoff from the Kennedy Space Center carrying another set of 60 Starlink internet satellites, the company’s third mission in 10 days.