Jason 3 pre-launch news conference

For the second day running, computers automatically aborted a Falcon 9 launch countdown Monday at NASA’s Kennedy Space Center in Florida in the final seconds before liftoff with the Intelsat 35e communications satellite.

NASA has declared assembly complete on the core stage for the first Space Launch System heavy-lift rocket in New Orleans, signaling a long-awaited transition from manufacturing to testing as the core stage is set to move to the nearby Stennis Space Center in Mississippi for a hold-down firing next year of its four shuttle-era main engines.

A Soyuz rocket is scheduled for liftoff Friday from the Vostochny Cosmodrome, Russia’s newest launch site, with 33 satellites from 12 countries on-board to collect weather data and test new space technology.