Australian Anthony Wesley discovered that a comet or asteroid had crashed into Jupiter, and emailed Nasa to let them know.

澳大利亚人安东尼·韦斯利(Anthony Wesley)发现一颗彗星或小行星曾撞击过木星，并通过电子邮件告知美国国家航空航天局。

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Anthony Wesley, 44, who has had a life-long passion for the stars, was photographing the planet close to midnight Sunday, when he noticed a black mark that hadn't been there two nights earlier.

今年44岁的安东尼·卫斯理一直十分喜爱观星。在19日午夜，在他拍摄木星时发现了一块黑斑，而两天前该黑斑是不存在的。

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Anthony Wesley found an unusual dark marking in Jupiter's atmosphere using his amateur telescope.

VOA: special.2009.08.25