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] 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
Althoughhehaddonemanygreatthings,Heneverfeltitnecessaryto_____hisac
Braindrain,whichistheactionofhavinghighlyskilledandeducatedpeopl
[originaltext]NowEuropeanfinanceministersareexpectedtoreprimandtheI
Issuesconcerninghumanlearningareamongthecriticaltopicsineducation
PASSAGETWO[br]Whatdoestheauthormeanbytheitalicizedpart(Para.10)?It’
关于匈牙利的土地使用制度,下列说法正确的是( )。A.把土地完全排除在民事流转
患者男,41岁,咳嗽、咳痰1周,发热37.8℃天,诊断上呼吸道感染,应用头孢类抗
何种情况下,县级以上人民政府报经上一级人民政府决定,可以采取紧急控制措施(
下列不是厚朴的性状特征的是A.断面外部灰棕色,颗粒性 B.外表面灰棕色或灰
根据《前期物业服务合同(示范文本)》,前期物业服务合同应包括()等内容。A:物业
最新回复
(
0
)