Isaacman also said the agency would halt work to develop a more powerful version of the SLS rocket's upper stage, known as the Exploration Upper Stage, or EUS. Instead, NASA will go forward with a "standardized," less powerful stage but one that will minimize major changes between flights and utilize the same launch gantry.
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（四）违反有关法律法规规定，升放携带明火的升空物体，有发生火灾事故危险，不听劝阻的；