A slower-than-expected ramp-up thrust caused a last-second computer-aborted launch of Space Exploration Technologies' Falcon 9 rocket last Thursday -- for the second time that week. All nine engines had been ignited before the abort was initiated. A second attempt was scheduled for just over an hour later but was also aborted as mission managers decided to study data from the first abort. SpaceX had planned to try launching again on Monday night, but decided to spend more time checking out the rocket. A new launch attempt is scheduled for tonight.
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