结果1 题目 Some of these stars have planets orbiting them, and ___ many billions of these planets could support life. () A. as far as it concerns B. there are possibly C. chances are that D. it is sure to say that 相关知识点: 试题来源: 解析 C 反馈 收藏 ...
In a 2011 study the author concluded that one in 16 stars similar to the Sun hosts at least one Jupiter-sized planet while the odds of finding planets are higher around stars that are twice more massive than the Sun. Two theories in planet formation, the core accretion scenario and the ...
A. The more metals a star has, the more likely it is to have planets. B. Stars that are metal-poor can be judged to be planet-poor. C. Planets are common around metal-poor stars in dwarf galaxies. D. Stars that are metal-poor in dwarf galaxies can own planets. 相关知识点: 试题...
Why are astrobiologists fixated on finding planets that have water? Explain the reason for each of the following: a) If you are trying to see a faint star in the night sky, it is better to look slightly to one side of it rather than straight at it. (...
[04:38.52]had one star that likely absorbed a planet. [04:43.28]Ting said most planetary systems, [04:46.56]like our solar system, should be stable. [04:51.08]He said the reason is that planets [04:53.52]are mos...
判断出Cygnus A是elliptical Galaxy;D选项,向日葵星系——由其明亮的核心辐射出的多臂星系。根据SPIRAL GALAXY: galaxies that have spiral arms that emerge from the center. 判断出来属于SPIRAL GALAXY。故答案为C。 反馈 收藏
Still,we can tell that some stars have planets.While a big planet goes round,it pulls its star to one side.And sometimes we can see this.Then we know that the star has a planet.For example,Barnard's Star(巴纳德星)is a small red star.And it is the quickest star in the universe....
It has influenced people's minds so deeply that people are worried about thepossibility of the Earth being attacked by an advanced extraterrestrial civilization(外星文明) as theplot of this novel.That worry is, atleast for now, unnecessary. Of the 1 800 planets that have been discovered less...
Now scientists have no hard evidence of aliens exist, also has yet to capture the alien radio signals. 翻译结果3复制译文编辑译文朗读译文返回顶部 There are 200 billion stars in the Milky Way galaxy of the Sun "brothers and sisters", and now scientists have found 150 stars have planets ...
Some of these stars have planets orbiting them, and ___ many billions of these planets could support life. ( )A.as far as it concernsB.there are possiblyC.chances are thatD.it is sure to say that的答案是什么.用刷刷题APP,拍照搜索答疑.刷刷题(shuashuati.