India, Feb. 22 -- NASA chief Jared Isaacman on Saturday ruled out a March launch for Artemis 2, the first crewed flyby mission to the Moon in more than 50 years, citing technical issues.

Workers identified a problem with helium flow to the Space Launch System (SLS) rocket that will "take the March launch window out of consideration," Isaacman said in a post on X.

"I understand people are disappointed by this development. That disappointment is felt most by the team at NASA, who have been working tirelessly to prepare for this great endeavor," Isaacman said.

"During the 1960s, when NASA achieved what most thought was impossible, and what has never been repeated since, there were many setbacks."

The towering SLS rocket and Orion spacecr...