However, Jack Lissauer, a theoretical astrophysicist at NASA's Ames Research Center in Moffet Field, California, is much more optimistic.

然而，加州莫菲特场市美国国家航空航天管理局艾姆斯研究中心的理论天体物理学家杰克·利索尔对此要乐观得多。

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Early this morning at Moffet Air Field in Mountain View, California, Solar Impulse finally took off on the first leg of its barnstorming tour across the US. Of course, this isn't the first time the sun-powered plane and its pilots, Bertrand Piccard and Andre Borschberg, have flown long distance, but it is the first time it's taken wing through American airspace.

ENGADGET