Live coverage of the countdown and launch of an H-2B rocket and Japan’s fifth H-2 Transfer Vehicle on a resupply flight to the International Space Station. Text updates will appear automatically below; there is no need to reload the page. Follow us on Twitter.
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Delta 4
Live coverage: Delta 4-Heavy launches from Vandenberg Air Force Base
United Launch Alliance’s Delta 4-Heavy rocket lifted off at 11:10 a.m. PST (2:10 p.m. EST; 1910 GMT) Saturday from Vandenberg Air Force Base, California, after a month-long delay to troubleshoot a hydrogen leak in one of its boosters. The heavy-lifter was on a mission to send a U.S. government spy satellite into orbit.