The American Museum of Natural History's Hayden Planetarium hosted a discussion of the future of manned space flight on March 15th.

3月15日，美国自然历史博物馆的海顿星象馆举行了一场有关载人航天飞行前景的讨论会。

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Yes, you may consider those two places also. Seattle, for example, is worth visiting and there's a very famous museum called museum of Flight.

是啊，你也可以考虑这两个地方。比方说，西雅图就很值得参观，有一个很有名的博物馆叫做航宁博物馆。

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According to the museum, this X-45 carried out 40 sorties, and became the first autonomous flight of a high-performance, combat UAV. The program lasted until 2005.

据博物馆，这种X - 45进行了40架次，成为第一个高性能的自主飞行，作战无人机。该计划持续到2005年。

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According to the museum, this X-45 carried out 40 sorties, and became the first autonomous flight of a high-performance, combat UAV.

据博物馆，这种X - 45进行了40架次，成为第一个高性能的自主飞行，作战无人机。

youdao

According to the museum, this X-45 carried out 40 sorties, and became the first autonomous flight of a high-performance, combat UAV.

据博物馆，这种X - 45进行了40架次，成为第一个高性能的自主飞行，作战无人机。

youdao