"Gagarin was aware of the fears concerning zero gravity, and he also knew about all failed launches preceding his flight, " but he never showed any fear or doubt, Ivanovsky said.
“Gagarin清楚对于零重力的担忧，他还知道飞行之前所有失败的发射。”但是他没有表现出害怕和疑虑，Ivanovsky说到。
Sharon Christa McAuliffe received a preview of microgravity during a special flight aboard NASA's KC-135 "zero gravity" aircraft.
SharonChrista McAuliffe受邀对美国宇航局的KC-135型模拟“零重力”飞行器进行测试。
Koichi Wakata conducted the test-flight in front of the cameras this month as part of zero-gravity experiments submitted by members of the public.
本月，在公众的要求下，若田光一在镜头前进行了失重实验中的飞行试验。
Take a zero gravity flight, Florida…
零重力飞行，美国佛罗里达州。
Take a zero gravity flight, Florida…
零重力飞行，美国佛罗里达州。
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