Photograph: Luke Larsen
However, another problem cropped up just one day after the successful fueling demo. Ground teams were unable to flow helium into the rocket's upper stage. Unlike the connections to the core stage, which workers can repair at the launch pad, the umbilical lines leading to the upper stage higher up the rocket are only accessible inside the cavernous Vehicle Assembly Building (VAB) at Kennedy.，这一点在体育直播中也有详细论述
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