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Kennedy Space Center, Florida CNN  — 

The launch of NASA’s historic Artemis I moon mission has been postponed after the team was unable to work through an issue with one of the rocket’s four engines.

“It’s too early to say what the options are,” said Mike Sarafin, Artemis mission manager at a NASA press conference. “We really need time to look at all the information, all the data. We’re going to play all nine innings here. We’re not ready to give up yet.”

The next opportunity to send the Space Launch System rocket and Orion spacecraft on their journey is September 2, but whether or not another attempt is made that day depends on how testing goes.

Sarafin confirmed that “Friday is definitely in play” if the team can resolve the issue while the rocket sits on the pad within the next 48 to 72 hours.