WASHINGTON — NASA said on Saturday that it was scrapping Tuesday's plans to launch Artemis, the United States' return to the moon after five decades, noting concerns about a tropical storm headed to Florida.
After two previously canceled launch attempts, NASA is weighing returning the Artemis 1 mission rocket to its assembly site under the threat of extreme weather.
"NASA is forgoing a launch opportunity … and preparing for rollback (from the launchpad), while continuing to watch the weather forecast associated with Tropical Storm Ian," it said on Saturday.
The US National Hurricane Center said Ian is due to "rapidly intensify" over the weekend as it moves toward Florida, home to the Kennedy Space Center, from which the rocket is set to launch. The storm was south of Jamaica, and was expected to approach Florida's west coast "at or near major hurricane strength" early this week, threatening storm surge, flooding and hurricane-force winds across much of the state, the center said.
On the launchpad, the giant orange and white Space Launch System rocket can withstand wind gusts of up to 137 kilometers an hour. But if it has to be sheltered, the current launch window, which runs until Oct 4, will be missed.
A decision on whether to roll back the rocket to the Vehicle Assembly Building was due to be taken by the Artemis 1 team on Sunday, "to allow for additional data gathering and analysis" with the operation, if necessary, starting late Sunday or Monday morning, NASA said.
Jim Free, associate administrator for the agency's exploration systems development mission directorate, said on Twitter that a "stepwise approach" to the decision to roll back preserves "a launch opportunity if conditions improve", indicating a launch date before Oct 5 was still on the table.
If not, the next launch window will run from Oct 17 to 31, with one possibility of taking off each day, except from Oct 24-26 and 28.
The Artemis 1 space mission hopes to test the SLS as well as the unmanned Orion capsule that sits atop it, in preparation for future moon-bound journeys with humans aboard.
Artemis is named after the twin sister of the Greek god Apollo, after whom the first moon missions were named.
Unlike the Apollo missions, which sent only white men to the moon between 1969 and 1972, the Artemis missions will include the first person of color and first woman to step foot on the lunar surface.
A successful Artemis 1 mission would come as a huge relief to the US space agency, after years of delays and cost overruns, according to Agence France-Presse.
But another setback would be a blow to NASA, after two previous launch attempts were scrapped when the rocket experienced technical glitches, including a fuel leak.
The cost of the Artemis program is forecast to reach $93 billion by 2025, with its first four missions clocking in at $4.1 billion each, according to a government audit.
Agencies Via Xinhua