首页
登录
职称英语
Scientists said they have found evidence of a giant planet far out in our so
Scientists said they have found evidence of a giant planet far out in our so
游客
2025-03-03
25
管理
问题
Scientists said they have found evidence of a giant planet far out in our solar system. In a statement, the California Institute of Technology—Caltech—said this planet travels a very strange "long and thin orbit in the distant solar system." The discovery was made by two researchers at Caltech: Konstantin Batygin and Mike Brown. They used mathematical modeling and computer simulations (模拟) to find the planet. So far, there have not been any direct observations of the planet.
"My jaw hit the floor," said astronomer Mike Brown, the moment he realized there might be a ninth planet.
The scientists said it would take this planet 10,000 to 20,000 years just to make one full orbit a-round the Sun. The new planet, called "Planet Nine", has a mass about 10 times the size of Earth. If they are right, the newly found planet would be the ninth planet in our solar system. Pluto (冥王星) had been called the ninth planet until 2006, when it was renamed a " dwarf planet. "
Actual confirmation of a ninth planet would be very big news. "This would be a real ninth planet," Brown said in the statement. "There have only been two true planets discovered since ancient times, and this would be a third. It’s a pretty substantial part of our solar system that’s still out there to be found, which is pretty exciting. "
While they did not get a picture of "Planet Nine" yet, the scientists say they are using the biggest—and best—-telescopes on Earth to try to find " Planet Nine. " They are also working on improving their computer simulations. They want to find out more about "Planet Nine’s" orbit, and its impact on the outer part of our solar system. [br] It can be inferred from Paragraph 4 that______.
选项
A、there is no actual confirmation about the ninth planet
B、no true planets were discovered in ancient times
C、scientists have found three planets in modern times
D、the ninth planet is the only one discovered since ancient times
答案
A
解析
推理题。B、C、D三项均与第四段布朗提到的“自古以来,只有两颗真正的行星被发现,而这会是第三颗。”相矛盾,根据第四段第一句可知A选项正确,故选A。
转载请注明原文地址:https://tihaiku.com/zcyy/3981288.html
相关试题推荐
Scientistssaidtheyhavefoundevidenceofagiantplanetfaroutinourso
Scientistsmeasuredtheimpactthatpeoplehaveontheenvironmentusingat
Scientistsmeasuredtheimpactthatpeoplehaveontheenvironmentusingat
Scientistsmeasuredtheimpactthatpeoplehaveontheenvironmentusingat
Scientistsmeasuredtheimpactthatpeoplehaveontheenvironmentusingat
Scientistsmeasuredtheimpactthatpeoplehaveontheenvironmentusingat
Scientistsmeasuredtheimpactthatpeoplehaveontheenvironmentusingat
Scientistsmeasuredtheimpactthatpeoplehaveontheenvironmentusingat
我们无法想象在那个遥远的星球上存在什么东西。Wecan’timaginewhatexistsinthatdistantplanet.
Thepassagetellsusabout______.[br]Thereisevidencethatmanischanging:
随机试题
Themorechallengingthejourneyis,the(happy)________theyoungpeoplewill
[originaltext]Paperisoneofthemostimportantproductseverinventedby
[audioFiles]audio_eufm_j46_001(20082)[/audioFiles]A、Solvingsomeproblems.B、Wo
事业单位借入款项的资金来源有()。A.财政部门B.上级主管部门C.银行D
“给我一打健全的婴儿,我可以运用特殊的方法,把他们加以任意的改变,或者使他们成为
个人健康档案以预防为导向的记录主要包括()A.对象的基础资料 B.个人生活行
A.截面D位移为0 B. C. D.
消防水泵接合器的检查方法和技术要求包括()。A.查看水泵接合器的外观是否有瑕疵
2021年3月28日,中共中央办公厅印发了《中国共产党组织处理规定(试行)》(以
根据《环境影响评价技术导则—生态影响》,下列关于替代方案的说法,正确的有( )
最新回复
(
0
)