“We don’t launch until it’s right,” he said during an interview on NASA TV Monday morning.
“There are certain guidelines. And I think it’s just illustrative that this is a very complicated machine, a very complicated system, and all those things have to work, and you don’t want to light the candle until it’s ready to go.”
Nelson said the engineers will continue to “stress” and “test” the rocket to make sure it’s ready by the next attempt, which is Sept. 2.
Earlier in the day, Nelson had welcomed several Biden administration officials, including Vice President Kamala Harris and second gentleman Doug Emhoff, to the Kennedy Space Center ahead of the launch.
He said the vice president has been briefed and the White House will continue to receive regular updates.