SpaceX test fires Falcon 9 booster following last-minute launch scrub

SpaceX test fired a Falcon 9 on pad 40 at Cape Canaveral early Saturday to clear the booster for its 16th flight. A launch attempt early Friday was aborted in the final minute of the countdown. SpaceX did not disclose the reason for the scrub. SpaceX is pushing the envelope for the second time this week by attempting to fly a Falcon 9 rocket for the 16th time. On Sunday night another booster lifted off from the same launch pad becoming the first Falcon 9 rocket to make a 16th flight. Previously the Falcon 9 first-stage had been certified for use up to 15 times. More

(Source: SpaceFlight Now - Jul 15)