NASA's double sledgehammer shot to the moon succeeded early this morning when an empty rocket stage and a lunar probe each crashed into separate craters.

随着一级空火箭和一个月球探测器分别撞击到月球表面不同的两座环形山上，美国航空航天局（NASA）的大型“双重撞月”行动在今天早晨取得了成功。

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The rocket consists of a giant core stage flanked by two solid rocket boosters, each slightly larger than the first stage of Ares I.

火箭有一个巨大的核心，两侧是两个固体火箭助推器，每个比战神i的第一级稍微大一些。

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The rocket is long and slender, and fatter on top because its second stage is thicker than its solid rocket motor-powered first stage.

火箭又长又细，上部有点粗，因为它的第二级比固体燃料火箭发动机驱动的第一级要厚。

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That project involves crashing a rocket stage into the moon's south pole.

VOA: special.2009.09.30

So this year NASA sent up a spacecraft and sent the rocket stage right into the moon to 'bomb' the moon, basically,and see what came up.

VOA: standard.2009.12.24

Two-and-one-half minutes after the Apollo Eleven launch, the first-stage rocket separated from the spacecraft.

VOA: special.2009.07.15

All the major events such as rocket-stage separation, fairing separation, and the ejection of the dummy payload occurred on cue.

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It was North Korea's first successful use of a three-stage rocket to put a satellite into orbit.

BBC: North Koreans mark rocket success with mass rally