Jason 3 pre-launch news conference

SpaceX’s Falcon 9 rocket completed a prelaunch hotfire test at launch pad 39A at NASA’s Kennedy Space Center in Florida on Tuesday in a signifiant step before Sunday’s scheduled liftoff of a top secret U.S. government spy payload.

SpaceX’s Falcon 9 rocket took off for its sixth flight of the year Monday from launch pad 39A in Florida, lofting an Inmarsat mobile broadband communications satellite to an orbit more than 40,000 miles above Earth.

SpaceX’s billionaire founder and chief executive Elon Musk spoke with reporters just after successfully landing a Falcon 9 booster for the first time.