据英国《每日邮报》11月7日报道，众所周知，大型陨石撞击地球可不是什么好消息，因为它会引发地震，海啸以及大火。
It's well known that a large meteorite hitting the earth would not be good news, as it would cause earthquakes, tsunamis and firestorms.
据英国《每日邮报》8月18日报道，有一颗小行星正行进在一条会与地球直接相撞的轨道上，为此科学家们计划将航天器发射至这颗行星。
Scientists plan to fire a spacecraft into an asteroid in an effort to prepare for one being on a direct collision course with Earth.
据英国《每日邮报》8月3日报道：一项新的理论表明，如今在夜晚照耀地球的月亮曾经有一个“小伙伴”，它们一度共同绕地球运行。
Earth may once have had two moons - the one that shines at night today had a smaller companion, according to a new theory.
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