“行星杀手”是即时战略游戏《家园2》中第15关维格尔军用以摧毁希格拉星的强大武器,普通武器对其无效,只能使用”萨尤克“号超级战舰摧毁。外形酷似一颗海星,发射巨型导弹以摧毁行星,共有三个。
但赫尔方指出,“阿波菲斯”是个很好的例子,它提醒人们注意“杀手行星”的存在。
Scientists are confident it will miss, but Helfand said Apophis is a good reminder that killer asteroids are out there.
马夸特的这个新发现来自他参加一项地区科学竞赛时提交的参赛项目,他的参赛项目名为“阿波菲斯——一颗杀手行星”。
The 13-year old made his discovery as part of a regional science competition for which he submitted a project entitled: "Apophis — The Killer Astroid."
令人放心的研究结果表明,天文学家已经掌握了90%以上大型的小行星的空间位置,它们是一些可能导致地球表面生物物种大灭绝的,巨大的杀手行星。
The study reassuringly suggests that astronomers already know the location of more than 90 percent of the very largest asteroids — the huge planet-busters that could cause mass extinctions.
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