Louis Friedman, executive director of the Planetary Society, says that the sails must be launched to test them, because there is no solar wind in Earth's atmosphere.
行星社执行官LouisFried man告诫道，太阳帆必须发射升空才能进行实验，因为在地球大气中不存在太阳风。
Louis Friedman, executive director of the Planetary Society, says that the sails must be launched to test them, because there is no solar wind in Earth's atmosphere.
行星社执行官LouisFried man告诫道，太阳帆必须发射升空才能进行实验，因为在地球大气中不存在太阳风。
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