SpaceX aborts rocket launch seconds before liftoff, but may still fly Sunday

Elon Musk's spaceflight company SpaceX just aborted its launch in perhaps the most dramatic way possible.
A SpaceX Falcon 9 was set to launch an uncrewed Dragon capsule loaded with about 5,500 pounds of supplies to the International Space Station under a contract with NASA, but with just 13 seconds left in the countdown, the company decided to abort the launch. 
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The decision was made on Saturday out of an "overabundance of caution"