1.For a time after it was discovered that there were other galaxies, the term "island universe" was applied to galaxies, but it has since fallen out of favor.2.In some ways, it's still an appropriate term because traveling to another galaxy would be extremely difficult,...
Size is the major difference between the universe, galaxies and solar systems. Other differences exist as well, however. Black holes are sections of space with intense gravitational pulls, from which not even light can escape. These phenomena can sometimes be found at the center of galaxies. Lar...
百度试题 结果1 题目5. In fact, there are many other galaxies(galaxy)in the universe. 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
【Paragraph 5】Determining the age of the universe has been more complicated. Most stars in the universe are clustered into enormous disk-like galaxies. The distance between our galaxy, known as the Milky Way, and all others is increasing. In fact, all galaxies are moving away from one anoth...
Astronomers in the late nineteenth century and at the very start of the twentieth century were very little interested in the broader universe, its history and what lay beyond our galactic system as well as what is sometimes termed the thermodynamic cosmos. Some were very concerned with the ...
The Milky Way is only one galaxy among a few hundred million galaxies in our universe (each with hundreds of billions of stars). Galaxies are huge groupings of stars, planets, gas and dust. Our sun is in the Milky Way, which measures about 100,000 light years across. That long thin ...
How much do you know aboutthe universe? In the huge universe,there is the Galaxy andmany other galaxies. In the Galaxy, there is the SolarSystem and lots of other stars. In the Solar System,there is the sun, the earth and seven other planets. Aswe know, the eight planets go around ...
How much do you know about the universe? In the huge universe, there is the Galaxy and many other galaxies. In the Galaxy, there is the Solar System and lots of other stars. In the Solar System, there is the sun, the earth and seven other planets. As we know, the eight planets go...
Like the Large and Small Magellanic Clouds, they have rather unusual-looking shapes.(1) What can we learn about the Milky Way? A . There are only stars inside it. B . It's the biggest spiral galaxy in the universe. C . There is a black hole at its center. D . It takes 100,...
How much do you know about the universe? In the huge universe, there is the Galaxy and many other galaxies. In the Galaxy, there is the Solar System and lots of other stars. In the Solar System, there is the sun, the earth and seven other planets. As we know, the eight planets go...