Besides the thousands of Trojans that co-orbit the sun with Jupiter, astronomers have discovered a handful that co-orbit the sun with Neptune and Mars. 2010 TK7 isn't a threat to Earth.

除了数千个一起与木星围绕太阳运行的特洛伊小行星之外，天文学家们发现了几个随着海王星和火星一起围绕太阳运转的行星。2010 TK 7对地球不会造成威胁。

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"This is turning out to be the most desired job in history, " says Bas Lansdorp, co-founder of Mars One.

火星一号联合创始人巴斯·兰斯卓普称，“这将成为历史上最令人钦羡的工作。”

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Hershey Co. and Mars Inc. said their Bliss and Dove lines, respectively, are marketed toward women.

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Mars Inc. and Raytheon Co.

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"It happened probably right at the end of the formation of the four terrestrial planets - Mercury, Venus, Earth and Mars, " said Craig Agnor, a co-author on the Francis Nimmo study.

BBC: Mars' two-faced riddle 'solved'