The craft, known as MESSENGER, began the orbit around 9:00 p.m. (0200 GMT) on a mission to circle the planet for one Earth year in an unprecedented study of the tiny, hot planet.

名为“信使”号的该航天器于晚上9点(格林威治标准时间凌晨2点)进入水星轨道，并在此后为期1地球年的时间内，环绕这个细小炎热行星进行史上第一次的研究。

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Like Tatooine, the planet there is likely pretty hot-it orbits very close to the main star, completing one orbit every 3.5 days.

像塔图因星球一样，行星在那里非常热-它离绕行的主恒星非常近，每3.5天完成一次公转。

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It was later discovered the planet might be too hot for life, but another potentially habitable world in the same system was quickly found to take its place.

后来发现该行星可能太热，并不适合生命，但是，在同一星系很快发现了另一颗可能存在生命的行星。

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These lines follow underwater mountains, where hot liquid rock flows up from deep inside the planet.

VOA: special.2010.01.12

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