The launch window opened at 8:33 a.m. EDT.
During a news conference hours after the space agency scrubbed the launch, officials confirmed that they are targeting Friday at the earliest but also warned that the launch could be delayed until September, The Associated Press reported.
In addition to an issue with the No. 3 engine not bleeding correctly, the weather was also a factor in the decision to postpone the launch, CNN reported.
“There were also a series of weather issues throughout the launch window. We would have been a no-go for weather at the beginning of the window due to precipitation. Later on in the window, we would have been no-go for lightning within the launchpad area,” Mike Sarafin, Artemis I mission manager, said.