NASA moon rocket hit by new problem, putting March launch with astronauts in jeopardy

Why it matters

NASA's new moon rocket has suffered another setback, putting next month's planned launch with astronauts in jeopardy. The space agency revealed the latest problem on Saturday, just one day after targeting March 6 for humanity's first flight to the moon in more than half a century. Officials say that overnight, the flow of helium to the rocket's upper stage was interrupted. Solid helium flow is required for launch. NASA is reviewing all the data and preparing, if necessary, to return