NASA moves forward with Artemis II tanking test that could set up moonshot mission
Phys.org
February 20, 2026
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NASA is set to begin fueling the Space Launch System (SLS) rocket with 700,000 gallons of cryogenic propellant at Kennedy Space Center on Thursday as part of a critical test countdown for the Artemis II mission. This tanking test marks a significant milestone in preparation for what could be humanity's next major leap in space exploration—a crewed mission to the Moon and beyond. The process involves loading super-cooled liquid hydrogen and methane into the rocket, ensuring all systems function as intended before liftoff.
The Artemis II mission is NASA's first crewed lunar mission since the Apollo era, aiming to demonstrate the capabilities of the SLS rocket and Orion spacecraft while paving the way for future deep space exploration. The test countdown will simulate the final steps leading up to launch, including fueling, mating of systems, and a full dress rehearsal of the countdown sequence. This phase is crucial for verifying that all components work together seamlessly and that any potential issues can be identified and addressed before the actual mission.
The SLS rocket, designed to carry astronauts into space, is one of the most powerful launch vehicles ever built. Its ability to transport crew and supplies beyond Earth's orbit makes it a cornerstone of NASA's Artemis program, which seeks to establish a sustainable human presence on the Moon by the late 2030s. The success of this test countdown will provide vital insights into the readiness of the rocket and its supporting infrastructure
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Originally published on Phys.org on 2/20/2026