The mission Artemis IIwhich aims fly over the Moon againdid not have the best of luck in its rehearsals before launch due to the fuel and a hydrogen leak. But now NASA can breathe easy, since the second general test with fuel of the gigantic SLS rocket It has been a resounding success. and opens the way for humanity to return to the Moon half a century later.
Without a doubt. Between February 19 and 20, 2026, engineers from the US space agency managed to complete the loading sequence of propellants without serious incidents, stopping the countdown exactly at the expected moment: T-29 seconds. The doubts about the engineering team are left behind and an imminent launch window opens that could start as early as March 6.
Master hydrogen. Filling a 98-meter-high rocket with more than 2.6 million liters of superfrozen fuel is no easy task in practice. That is why in the previous test, carried out on February 3, we saw how it had to be aborted when the clock read T-5:15. And the culprit was none other than NASA’s old enemy: liquid hydrogen leaks.
It must be taken into account here that liquid hydrogen is an exceptionally efficient propellant, but tremendously elusive, since it requires cryogenic temperatures of -253 °C. This extreme temperature causes the materials shrink in the rocketfacilitating escapes and increasing safety risks for the crew. Although this is what NASA found during the Artemis 1 mission in 2022.
The repair. For this second attempt, NASA technicians meticulously replaced the defective seals and filters and the truth is that the move went perfectly. And during this last test, the filling was completed normally and the exhaust controls worked wonderfully.
One step closer. The success of this trial is essential so that the Artemis program is not further delayed and neither is everything that will come after it. If we put ourselves in context, the Artemis mission was scheduled for September 2025, but was delayed until spring 2026 due to technical problems in the heat shield, batteries or control system of the Orion capsule. A big blot on paper that NASA needed to make up for with some success like this.
When will it be released? In this way, the space agency already has its sights set on the launch window that opens from March 6 to 30the most optimal being to do it between March 6 and 11. That is why if everything follows the planned plan, the Orion capsule will be launched on a free return trajectory on a trip of approximately 10 days around the Moon, without landing on the moon.
The objective. On board will be four pioneers who will take over the Apollo missions: Americans Reid Wiseman, Victor Glover and Christina Koch, along with Canadian Jeremy Hansen. Its mission is not only historic because it is the first manned flight of the program, but because it will serve to validate all life support systems before the main course: Artemis III. A project that has its sights set on carrying out the first manned landing on the south pole of the Moon since 1972 and, above all, overtaking competing countries such as, for example, China, which makes very significant progress in the space race.
Images | POT Pedro Lastra
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