{"id":43388,"date":"2026-02-23T00:32:00","date_gmt":"2026-02-22T16:32:00","guid":{"rendered":"https:\/\/wp-productionenv-bjg9h2g2bgg5b8aa.southeastasia-01.azurewebsites.net\/news\/nasa-says-it-needs-to-haul-the-artemis-ii-rocket-back-to-the-hangar-for-repairs\/"},"modified":"2026-02-23T00:32:00","modified_gmt":"2026-02-22T16:32:00","slug":"nasa-says-it-needs-to-haul-the-artemis-ii-rocket-back-to-the-hangar-for-repairs","status":"publish","type":"post","link":"https:\/\/starpath.global\/news\/nasa-says-it-needs-to-haul-the-artemis-ii-rocket-back-to-the-hangar-for-repairs\/","title":{"rendered":"NASA says it needs to haul the Artemis II rocket back to the hangar for repairs"},"content":{"rendered":"

A day after NASA officials expressed optimism that they could be ready to launch the Artemis II mission around the Moon next month, the space agency\u2019s administrator announced Saturday that a new problem will require the removal of the rocket from its launch pad in Florida.<\/p>\n

The latest issue appeared Friday evening, when data showed an interruption in helium flow into the upper stage of the Space Launch System rocket, NASA Administrator Jared Isaacman wrote in a post on X. Isaacman posted a more thorough update Saturday, writing that engineers are still examining the potential cause of the problem, but any fixes must take place inside the Vehicle Assembly Building.<\/p>\n

That means NASA and contractor ground teams will immediately begin preparing to roll the 322-foot-tall (98-meter) SLS rocket off of Launch Complex 39B and back to the VAB. The rocket and its mobile launch platform will ride NASA\u2019s crawler-transporter for the 4-mile journey.<\/p>\n

\u201cRegardless of the potential fault, accessing and remediating any of these issues can only be performed in the VAB,\u201d Isaacman wrote. \u201cAs mentioned previously, we will begin preparations for rollback, and this will take the March launch window out of consideration. 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.\u201d<\/p>\n

NASA officials were eyeing a launch attempt for Artemis II as soon as March 6, the first of five launch opportunities available in March. There are approximately five days per month that the mission can depart the Earth after accounting for the position of the Moon in its orbit, the flight\u2019s trajectory, and thermal and lighting constraints. The next series of launch dates begins April 1.<\/p>\n

The space agency bypassed launch opportunities earlier this month after a fueling test on the SLS rocket revealed a hydrogen leak. After replacing seals in the fuel line leading into the SLS core stage, NASA completed a second fueling test Thursday with no significant leaks, raising hopes the mission could take off next month. With the discovery of the helium issue Friday night, the March launch dates are now off the table.<\/p>\n

,<\/p>\n

The helium system on the SLS upper stage\u2014officially known as the Interim Cryogenic Propulsion Stage (ICPS)\u2014performed well during both of the Artemis II countdown rehearsals. \u201cLast evening, the team was unable to get helium flow through the vehicle. This occurred during a routine operation to repressurize the system,\u201d Isaacman wrote.<\/p>\n

\n

\"\"<\/p>\n

The Space Launch System rocket emerges from the Vehicle Assembly Building to begin the rollout to Launch Pad 39B last month.<\/p>\n

Credit:
\n Stephen Clark\/Ars Technica<\/p>\n<\/figure>\n

Another molecule, another problem<\/h2>\n

Helium is used to purge the upper stage engine and pressurize its propellant tanks. The rocket is in a \u201csafe configuration,\u201d with a backup system providing purge air to the upper stage, NASA said in a statement.<\/p>\n

NASA encountered a similar failure signature during preparations for launch of the first SLS rocket on the Artemis I mission in 2022. On Artemis I, engineers traced the problem to a failed check valve on the upper stage that needed replacement. NASA officials are not sure yet whether the helium issue Friday was caused by a similar valve failure, a problem with an umbilical interface between the rocket and the launch tower, or a fault with a filter, according to Isaacman.<\/p>\n

In any case, technicians are unable to reach the problem area with the rocket at the launch pad. Inside the VAB, ground teams will extend work platforms around the rocket to provide physical access to the upper stage and its associated umbilical connections.<\/p>\n

NASA said moving into preparations for rollback now will allow managers to potentially preserve the April launch window, \u201cpending the outcome of data findings, repair efforts, and how the schedule comes to fruition in the coming days and weeks.\u201d<\/p>\n

It\u2019s not clear if NASA will perform another fueling test on the SLS rocket after it returns to Launch Pad 39B, or whether technicians will do any more work on the delicate hydrogen umbilical near the bottom of the rocket responsible for recurring leaks during the Artemis I and Artemis II launch campaigns. Managers were pleased with the performance of newly installed seals during Thursday\u2019s countdown demonstration, but NASA officials have previously said vibrations from transporting the rocket to and from the pad could damage the seals.<\/p>\n

,<\/p>\n

\u201cThat rollout environment is very complicated,\u201d said Amit Kshatriya, NASA\u2019s associate administrator, earlier this month. \u201cWe think that\u2019s a contributor.\u201d<\/p>\n

NASA is also expected to replace batteries on the rocket\u2019s flight termination system inside the VAB. The destruct system batteries currently on the rocket will expire next month.<\/p>\n

Artemis II will be the first human spaceflight mission to the vicinity of the Moon since 1972 and marks the first time astronauts will fly aboard NASA\u2019s SLS rocket and Orion spacecraft. Astronaut Reid Wiseman, pilot Victor Glover, and mission specialists Christina Koch and Jeremy Hansen entered NASA\u2019s standard preflight medical quarantine Friday. Now, they will be released to resume normal training activities.<\/p>\n

Artemis II is a precursor for follow-on missions that will target landings at the Moon\u2019s south pole. NASA aims to land the first Artemis mission on the Moon by 2028, but the schedule comes with uncertainties, such as the availability of a human-rated lander, spacesuits, and the SLS rocket and Orion spacecraft. A successful, and timely, Artemis II mission would help demonstrate that the SLS rocket and Orion will be ready.<\/p>\n

With questions about the readiness of nearly every element of the Artemis program for a Moon landing mission, Isaacman teased a \u201cmore extensive briefing\u201d on Artemis II and NASA\u2019s broader lunar program later this week.<\/p>\n","protected":false},"excerpt":{"rendered":"

A day after NASA officials expressed optimism that they could be ready to launch the Artemis II mission around the Moon next month, the space agency\u2019s administrator announced Saturday that a new problem will require the removal of the rocket from its launch pad in Florida. The latest issue appeared Friday evening, when data showed […]<\/p>\n","protected":false},"author":1,"featured_media":42852,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[2],"tags":[],"class_list":["post-43388","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/43388"}],"collection":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/comments?post=43388"}],"version-history":[{"count":0,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/43388\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/media\/42852"}],"wp:attachment":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/media?parent=43388"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/categories?post=43388"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/tags?post=43388"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}