NASA declared on Tuesday that "everyone is `go"' for a Hawthorne rocket developer's upcoming launch to the International Space Station.

The thumbs-up came after NASA completed an additional so-called Flight Readiness Review.

Space Exploration Technologies Corp., known as SpaceX, hopes to launch its Dragon spacecraft on Saturday to become the first commercial enterprise to dock with the space station.

The launch has been delayed several times, most recently because of software problems.

"The teams reported all remaining work had been completed and everyone is `go' for launch," NASA said in a statement.

The space agency's review focused on SpaceX's recent software changes as well as "the closeout of additional paperwork."

SpaceX plans its own launch readiness review on Thursday.

The rocket company is scheduled to launch Dragon on a SpaceX Falcon 9 rocket at 1:55 a.m PDT from Cape Canaveral Air Force Station, Fla.

SpaceX has a great deal riding on the mission, which will demonstrate whether NASA can use private companies to supply the space station. SpaceX is operating under a $1.5 billion NASA contract.

SpaceX also is equipping another version of Dragon to accommodate humans in hopes of providing astronaut transport services to the space station.

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NASA approves SpaceX launch; space station flight set to start Saturday