Watch as SpaceX test-fires Falcon 9 ahead of Starlink launch (members only)

Hours after launching a batch of cargo and provisions to the International Space Station on Tuesday, SpaceX ground teams wheeled another Falcon 9 rocket into the hangar at Cape Canaveral for a commercial satellite launch set for April 27.

A new solid rocket motor built by Northrop Grumman has aced its final test-firing before a scheduled debut on a United Launch Alliance Atlas 5 rocket flight next year.

A Northrop Grumman Antares rocket rolled out to its launch pad on Virginia’s Eastern Shore early Tuesday, setting the stage for liftoff Saturday on a resupply flight to the International Space Station that will debut an upgraded launcher and Cygnus cargo vehicle capable of hauling heavier payloads into orbit.