The 9,000-pound monster I don’t want to give back
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.，详情可参考WPS官方版本下载
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2-phase A* already uses many heuristics which don't always create an optimal route and still 5-10x slower.