The delay of the Artemis II launch after fuel tests comes as no surprise to those who have followed NASA's Manned Spaceflight Program.
Dr. Phillip Anderson is Director of the William B. Hanson Center for Space Sciences at the University of Texas at Dallas.
"I have been to multiple launches and I would say I have probably less than a 50 percent success rate of them going off on time," Dr. Anderson said. "I have seen this refueling issue multiple times."
He says delays are a part of the process. Whether the launch can get off in March is still up in the air.
"It's kind of a flip of a coin, honestly," Anderson said. "They're going to be as safe as possible and they are not going to do anything that, at all, risks the astronauts."
Once launched, the Artemis II flight will take four astronauts on a lunar flyby and send them farther out into space than anyone has traveled before.
A future Artemis mission in about two years is scheduled to land on the Moon. The first such human spaceflight since December of 1972.