Lindley Johnson, head of the near-Earth object program at NASA headquarters in Washington, D.C., says an asteroid the size of a football field could wipe out a major city.

在华盛顿的美国宇航局总部的近地天体计划负责人林德利-约翰逊说，如果一颗足球场大小的小行星撞上了地球，其威力可以毁灭一座大型城市。

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WTL delivers the object oriented way to program for the Windows user interface, while keeping the code size small.

WTL 专注于用面向对象的方法来编写Windows的用户界面程序，同时保持代码的尺寸很小。

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"The meteor was probably about the size of an SUV, " said Donald Yeomans, manager of NASA's Near-Earth Object Program Office at the laboratory, in Pasadena, Calif.

WSJ: Meteor Creates a Show, No Apparent Damage