Live coverage of the countdown and launch of the NASA’s Soil Moisture Active Passive environmental satellite aboard a United Launch Alliance Delta 2 rocket. Text updates will appear automatically below; there is no need to reload the page. Follow us on Twitter.
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SpaceX launched a classified payload for the National Reconnaissance Office on Monday after a first stage sensor problem halted a countdown Sunday. Liftoff from launch pad 39A at NASA’s Kennedy Space Center in Florida occurred at 7:15 a.m. EDT (1115 GMT), and the first stage landed at nearby Cape Canaveral around nine minutes later. The upper stage’s flight entered a pre-planned news blackout a few minutes after launch.
Video: Liftoff of WorldView 4 aboard Atlas 5 rocket
The United Launch Alliance Atlas 5 rocket, standing 189 feet tall and and weighing 720,000 pounds, unleashes 860,000 pounds of thrust from its main engine at 10:30 a.m. local time (1:30 p.m. EST; 1830 GMT) today to launch the commercial WorldView 4 Earth-imaging satellite for DigitalGlobe from Vandenberg Air Force Base, California.