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
11
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] To find "Planet Nine", scientists are using all the following EXCEPT______.
选项
A、mathematical modeling
B、computer simulations
C、advanced telescopes
D、large spacecrafts
答案
D
解析
细节题。文章第一段提到了数学模型和计算机模拟,第五段提到。了先进的望远镜和计算机模拟。只有大型飞行器在文中没有提及,故选D。
转载请注明原文地址:https://tihaiku.com/zcyy/3981289.html
相关试题推荐
Scientistssaidtheyhavefoundevidenceofagiantplanetfaroutinourso
Scientistssaidtheyhavefoundevidenceofagiantplanetfaroutinourso
Ajudgemustbe______whenweighingevidence.A、interestedB、disinterestedC、sepa
Theplanet’shealthdependsonthesurvivalofcoralreefs.珊瑚礁的生存关乎地球是否处于健康状态。
Scientistsmeasuredtheimpactthatpeoplehaveontheenvironmentusingat
Scientistsmeasuredtheimpactthatpeoplehaveontheenvironmentusingat
Scientistsmeasuredtheimpactthatpeoplehaveontheenvironmentusingat
Scientistsmeasuredtheimpactthatpeoplehaveontheenvironmentusingat
Scientistsmeasuredtheimpactthatpeoplehaveontheenvironmentusingat
Thepassagetellsusabout______.[br]Thereisevidencethatmanischanging:
随机试题
Thirty-twopeoplewatchedKittyGenovesebeingkilledrightbeneaththeirwi
Thespectatorsinthestadiumcheeredupwhentheysawhundredsofcolorfulball
(1)Themoreresponsibilityyoutakeonatworkandinlife,themoreofteny
[originaltext]Mostdoctorshavelongbelievedthatreducingsaltcandecrea
Manypeoplewhoareadoptingachildexpectittobringgreatjoytotheirl
云锦花纹又称A五花层 B五影纹 C水波纹 D云纹 E方胜纹
A.巨核细胞系统B.粒细胞系统C.淋巴细胞系统D.红细胞系统E.单核细胞系统细胞
Thechangeinthatvillagewasmiraculou
内痔的主要临床表现是( )。A.肛门不适 B.排便时无痛性、间歇性出血 C
按照我国的现行规定,施工现场()人以上的临时食堂,污水排放时可设置简易有效的
最新回复
(
0
)