《2017考研英语阅读精选》

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Ninth may have been , say

研究人员称第九大行星或被发现

You might have a , Pluto. There could be in our solar .

人们也许找到了冥王星的替代者。在太阳系中可能有另一个星球能充当第九大行星的角色。

at the of have found in the outer solar of an that could be a real ninth .

加州理工学院的研究人员发现，太阳系外围的一颗行星能够成为真正的第九大行星。

Nine, it "has a mass about 10 times that of Earth and about 20 times from the sun" than . That means "it would take this new 10,000 and 20,000 years to make just one full orbit the sun," to .

加州理工学院透露。这颗被叫做九号行星的星球“质量是地球的十倍，而到太阳的平均距离是海王星到太阳距离的20倍。”这表明“这颗行星围绕太阳运行一周需要大约1万到2万地球年。”

and Mike Brown haven’t seen the , but other lead them to that there is one. , they found that in the Belt -- the field of icy and -- had that in the same .

研究人员 和Mike Brown还没有看见这颗行星，但是其他研究结果让他们确定确实有这颗行星存在。他们基本上发现，柯伊伯带上的物体拥有同样方向的轨道。柯伊伯带是越过海王星充满结冰物体和碎片的地带。

Over time, and led them to the that a was the to shape these .

随着时间流逝，他们利用数学建模和计算机模拟得出了有一颗星球利用其重力来形成这些轨道的结论。

Brown says "there have only been two true since times, and this would be a third. It’s a chunk of our solar that’s still out there to be found, which is ."

Brown说：“自古代以来，人类只发现了两颗真实的行星，而这次这颗会成为第三颗。这是太阳系中能够找到的坚固物块，让人十分兴奋。”

, is Nine is large to rule out any about it’s a true -- Pluto, which got the boot in 2006.

加州理工学院十分自信，认为九号行星足够大，能够驳回一切关于它是否是真实星球的争辩。而冥王星则不同，在2006年被摘去九大行星的名号。

Brown, who a role in Pluto’s to a dwarf , says "all those who are mad that Pluto is no a can be to know that there is a real out there still to be found. Now we can go and find this and make the solar have nine once again."

Brown曾参与过将冥王星降级为白矮星的工作，他说：“所有为冥王星不再是行星而愤怒的人们会因为知道仍有一颗待于发现的真实行星而激动不已。现在我们能够找到这颗行星，并且再次列出太阳系九大行星。”

on where Nine is in its ", orbit," many have a shot at it. Brown would love to find a he , "but I’d also be happy if else found it. That is why we’re this paper. We hope that other are going to get and start ."

根据九号行星处在“奇异且极其细长的轨道”上，许多望远镜都有机会观测到它。Brown很想找到他帮忙发现的行星。他说：“但如果别人找到了它，我也会很高兴。这就是我们出版这篇论文的原因。我们希望别人能够从中得到启发并开始寻找。”