Attempt to launch commercial space vehicle sputters From John Zarrella, CNN As the countdown reached zero, the engines of a SpaceX vehicle shutdown NASA: Early data shows chamber pressure on an engine was high, causing the abort The next launch attempt could come early Tuesday morning (CNN) -- The future is on hold, at least for a couple of days. The commercial company SpaceX was hoping to become the first to launch a vehicle and berth it to the International Space Station. No commercial company and only a handful of nations in the world have this capability. As the countdown reached zero, the engines began firing -- but then shut down. A problem was detected with one of the vehicle engines. NASA's Kennedy Space Center posted a Twitter message Saturday saying why the launch attempt fizzled: "Early data shows that the chamber pressure on Engine 5 of SpaceX's Falcon 9 rocket was high, causing the abort," the center tweeted. Engineers are still troubleshooting the problem. The next launch attempt could come early Tuesday morning. CNN's John Couwels contributed to this report.