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
10
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] According to the scientists, ______.
选项
A、the planet is ten times larger than the Earth
B、it takes the planet less than 10,000 years to make a full orbit
C、Pluto was once thought to be the ninth planet in the solar system
D、Pluto was given a new name after it was discovered in 2006
答案
C
解析
细节题。定位到文章第三段最后一句“Pluto had been called the ninth planet until 2006,when it was renamed a‘dwarf planet.’”可知,冥王星一直被认为是太阳系第九大行星,直到2006年,它才被重新归类为“矮行星”。故选C。
转载请注明原文地址:https://tihaiku.com/zcyy/3981287.html
相关试题推荐
Ajudgemustbe______whenweighingevidence.A、interestedB、disinterestedC、sep
Scientistssaidtheyhavefoundevidenceofagiantplanetfaroutinourso
Scientistssaidtheyhavefoundevidenceofagiantplanetfaroutinourso
Scientistssaidtheyhavefoundevidenceofagiantplanetfaroutinourso
Scientistsmeasuredtheimpactthatpeoplehaveontheenvironmentusingat
Scientistsmeasuredtheimpactthatpeoplehaveontheenvironmentusingat
Scientistsmeasuredtheimpactthatpeoplehaveontheenvironmentusingat
Scientistsmeasuredtheimpactthatpeoplehaveontheenvironmentusingat
Scientistsmeasuredtheimpactthatpeoplehaveontheenvironmentusingat
Scientistsmeasuredtheimpactthatpeoplehaveontheenvironmentusingat
随机试题
[originaltext]Theworld’sfirstcompletelyautomaticrailwayhasbeenbuilt
造纸术paper-making
OurplanetEarthis4,600millionyearsold.Ifwereduce【M1】______thi
在任何图中必定有偶数个()。A.度数为偶数的结点 B.入度为奇数的结点 C
关于女儿墙的构造设计,下列哪一项说法是正确的?( )A.上人屋面可作女儿墙,其
被称为\"基因卫士\"的抑癌基因是A.APC B.Rb C.P D.DCC
18世纪以后,由科学革命、工业革命和政治革命构成的_反应给予欧洲资本主义以不可阻
下列关于可摘局部义齿支持形式的叙述,错误的是()A.牙支持式义齿的力
A.苷元-(D-葡萄糖)B.苷元-(D-葡萄糖)-(2,6-二去氧糖)C.苷元-
商业银行人民币存款包括个人存款、单位存款和( )。A.定期存款 B.外币存款
最新回复
(
0
)