More than 50 years after Apollo’s last lunar mission, NASA was forced to postpone the first launch of the enormous rocketship it hopes will one day transport men back to the moon on Monday due to an engine issue.
As launch teams started a test that would have cooled the Space Launch System (SLS) rocket’s main engines in preparation for liftoff, the US space agency cited an issue with one of the engines. One would not cool as anticipated.
Two minutes past the scheduled launch time, at 8:35 a.m. EDT (12:35 p.m. GMT), the 32-story-tall rocket and its Orion capsule were still awaiting liftoff from the Kennedy Space Center in Cape Canaveral, Florida.
The mission, dubbed Artemis I, calls for a six-week, uncrewed test flight of Orion around the moon and back to Earth for a splashdown in the Pacific.
NASA did not give a new launch date for the two-stage rocket but said its first available opportunity was Friday, Sept 2.
Whether the agency sticks with that date depends on how quickly engineers can resolve the engine issue. The subsequent launch opportunity is Monday, Sept 5.
Late-hour launch delays are routine in the space business, and Monday’s postponement was not an indication of a major setback for NASA or its primary contractors, Boeing Co (BA.N) for SLS and Lockheed Martin Corp (LMT.N) for Orion.
“We don’t launch until it’s right,” NASA chief Bill Nelson said in a webcast interview just after the liftoff was scrubbed. “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.”
Still, the delay was a disappointment to thousands of spectators who had gathered on the shores around Cape Canaveral, with binoculars in hand.
Vice President Kamala Harris had just arrived at the space centre, joining a throng of dignitaries and invited guests attending the event, shortly before the scrub was called.
The SLS-Orion rocket’s first journey will mark the kickoff of NASA’s highly vaunted moon-to-Mars Artemis program, the successor to the Apollo lunar missions of the 1960s and ’70s.
The voyage is intended to put the 5.75-million-pound vehicle through its paces in a rigorous demonstration flight, pushing its design limits, before NASA deems it reliable enough to carry astronauts in a subsequent flight targeted for 2024.
Five decades since humans last on moon
Billed as the most powerful, complex rocket in the world, the SLS represents the biggest new vertical launch system the US space agency has built since the Saturn V rocket flown during Apollo, which grew out of the US-Soviet space race of the Cold War era.
If the first two Artemis missions succeed, NASA is aiming to land astronauts back on the moon, including the first woman to set foot on the lunar surface, as early as 2025, though many experts believe that time frame is likely to slip by a few years.
More than 50 years after Apollo’s last lunar mission, NASA was forced to postpone the first launch of the enormous rocketship it hopes will one day transport men back to the moon on Monday due to an engine issue.
As launch teams started a test that would have cooled the Space Launch System (SLS) rocket’s main engines in preparation for liftoff, the US space agency cited an issue with one of the engines. One would not cool as anticipated.
Two minutes past the scheduled launch time, at 8:35 a.m. EDT (12:35 p.m. GMT), the 32-story-tall rocket and its Orion capsule were still awaiting liftoff from the Kennedy Space Center in Cape Canaveral, Florida.
But the Artemis program also has generated tens of thousands of jobs and billions of dollars in commerce.
One issue cited by NASA officials last week as a potential show stopper for Monday’s launch was any sign during rocket fuelling that a newly repaired hydrogen line fitting had failed to hold. NASA officials said on Sunday they were also eyeing a potential, but minor, helium leak in launch pad equipment.
Although no humans will be aboard, Orion will be carrying a simulated crew of three – one male and two female mannequins – fitted with sensors to measure radiation levels and other stresses that real-life astronauts would experience.
