SpaceX scrubs launch of latest Falcon 9 rocket, will try again Friday
Article Excerpt: "... Falcon 9's computers initiated an abort with just 58 seconds left in the countdown. SpaceX scrambled to determine the cause of the problem, but ultimately decided to scrub for the day. The company later tweeted that the issue was a "standard ground system abort" and that the rocket and satellite were in "good health ..."
Reference: www.latimes.com