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Under the original Artemis architecture, NASA planned on multiple versions of the SLS rocket, ranging from the "Block 1" vehicle currently in use to a more powerful EUS-equipped Block 1B and eventually an even bigger Block 2 model using advanced solid rocket boosters. The latter two versions required use of a taller mobile launch gantry, already well under construction at the Kennedy Space Center.
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// Stateful transform — a generator that wraps the source
A broad funding base from diverse sources makes every contribution meaningful and
2026年2月23日14时38分，众人抬牛往前挪步。南方周末记者郑丹摄