If we could power such an elevator with solar energy, we could simply rise up into space for a fraction of the cost of a trip by rocket or shuttle.

如果我们能利用太阳能为这样的电梯提供动力，我们只需花费乘坐火箭或航天飞机旅行费用的一小部分就能进入太空。

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Trip includes round-trip air tickets, hotel stay for two nights, and tours of the National Air and Space Museum and the office of National Geographic World.

行程包括往返机票、两晚的酒店住宿、国家航空航天博物馆和国家地理世界办公室之旅。

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This is when the last stage of their one-way trip into space begins: sailing along the magnetic field of the Earth.

至此，离子通向太空的单程旅行前的最后一步开始了，这就是沿着地球磁场自由航行。

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Apollo 13 was also Lovell's last trip to space.

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And on his second trip into space at age 77, he defied the odds once again.

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This flight marks Hadfield's third trip to space, and second visit to the International Space Station.

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An earlier X Prize resulted in the first nongovernment human trip into space.

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