Add Yahoo as a preferred source to see more of our stories on Google. NASA officials have said their SLS mega-rocket program is "unaffordable." The program has long been criticized for a lack of ...

NASA’s Artemis II wet dress rehearsal ended early this month when a liquid hydrogen leak forced controllers to terminate the countdown at T-5:15, the second time the agency’s moon rocket has been ...

Add Yahoo as a preferred source to see more of our stories on Google. Debris scatters on June 26, 2025, during a static fire test of a new solid rocket motor at a Northrop Grumman facility in Utah.

Northrop Grumman and NASA conducted a dramatic static-fire test of a booster for an SLS (Space Launch System) rocket last week. According to NASA, the five-segment booster rocket fired for more than ...