用它，美国宇航局带头创建了太空站，在那里人类已经学会在微重力条件下生存数月，并做生物医学和天文学研究。
With it, NASA took the lead in creating the space station, where humans have learned how to survive for months in micro-gravity and do biomedical and astronomical research.
最新消息：美国行星学会(ThePlanetary Society)计划在今秋发射一艘105平方英尺(约10平方米)的太阳帆太空船。
Update: The Planetary Society plans to launch a 105-square-foot solar-sail craft into space this fall.
最新消息：美国行星学会(ThePlanetary Society)计划在今秋发射一艘105平方英尺(约10平方米)的太阳帆太空船。
Update: The Planetary Society plans to launch a 105-square-foot solar-sail craft into space this fall.
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