百度试题 结果1 题目How many stars are there in the Milky Way?相关知识点: 试题来源: 解析 Thirty billion stars.反馈 收藏
Thegalaxyis surrounded by a huge hot-gas halo that is several hundreds of thousands of light-years in diameter. Astronomers estimate that the halo's mass is about the same as that of all the stars in the Milky Way. Many of the Milky Way's stars, however, are tough to view. That is...
But it's also a changing tapestry, as new stars are constantly being born, and others are dying. In fact, that will be the fate of our own sun in roughly 5 billion years. But how quickly does the night sky change, and in our galaxy, the Milky Way, how many stars die each year?
So, how many stars are there in space? No one knows for sure. Some astronomers in the European Space Agency', or the ESA, have some estimates (计) about the total number of stars in the universe.The Milky Way' is very important to humans because it is the home galaxy of our Sun...
1.Where and what does the sun travel with?2.What was the earth like in the universe?3.What do we use to work out how far away a star is from the earth?4.How many stars are there in the Milky Way?5.What does "Milky Way" mean in Chinese?第3个 e have light-years `` 答案 ...
百度试题 结果1 题目How many stars are there in the ___(宇宙)?相关知识点: 试题来源: 解析 universe 反馈 收藏
阅读理解。 Do you know how many stars there are in the universe? The answer is WANY! Our sun is one of about 100 billion stars in our galaxy the Milky Way. But the Milky Way is just one of billions of galaxies that we know about!
Besides the Sun, ProximaCentauri (半人马比邻座星) isthe closest star at 4.2 light years away: Some of the brightest stars are moredistant Rigel (参宿七), in the constellation Orion (猎户星座), is the seventh brightest star inthe sky but is 900...
【解析】根据How many stars以及后面问号可知本句是一个特殊疑问句,其句型是特殊疑问词+助动词/be动词/情态动词+主语+其他成分,本句特殊疑问句是how many, 后面应加动词和主语,具体到本句是C项“are there”,A项和B项都不符合。7.【答案】C【核心短语/词汇】make a visit to去参观,farm农场。【翻...
Astronomers haveestimatedthe number of stars in the Milky Way galaxy as one hundred billion (this is a low estimate by the way). The Milky Way is an average galaxy. Astronomers estimate that there are one hundred billion galaxies in the known universe (another low estimate). The math to fi...