1. (存在) because of the influence its2. (重力) has on matter that can be seen. On earth,3. (physics) use particle acceleratora (粒子力口速器) to find out how different tiny particles are made up of by speeding them up until they 4. c into each other and looking at the ...
Scientists have discovered that most galaxies are made up of stars, gas, and dark matter. Which of the following is the main component of a galaxy? A. Planets B. Stars C. Asteroids D. Comets 相关知识点: 试题来源: 解析 B。解析:galaxy(星系)主要由恒星(stars)、气体和暗物质构成,恒星是...
Galaxies(星系) are made up of three main things: stars,clouds of gas and dark matter. Dark matter can not be seen and scientists only know that it 1.(存在) because of the influence its2.(重力) has on matter that can be seen. On earth,3.(physics) use particle acceleratora (粒子力...
Galaxies are sprawling systems of dust, gas, dark matter, and anywhere from a million to a trillion stars that are held together by gravity. Nearly all large
solutions to Einstein's equations which we construct in d = 3. Grey Galaxies are made up of a black hole with critical angular velocity ω = 1 in the 'centre' of AdS, surrounded by a large flat disk of thermal bulk gas that revolves around the centre of AdS at the speed of light....
Galaxies are complex systems held together by gravity. They're made up of gases, stellar dust and millions — sometimes even billions — of stars, which are accompanied by their own planets and asteroid belts. Out of the more than 200 billion galaxies, many have a spiral shape (like the ...
GALAXIES OF THE UNIVERSE Galaxies are huge groupings of stars, planets, gas, and dust. Our sun is in the Milky Way, which measures about100,000 light years across. That long thin milky bright shape across the middle of the night sky is made up of about hundreds of billions of stars in...
2. What are Galaxies Made of? Ans- The formation of galaxies is still uncertain. The entire cosmic space was entirely made up of hydrogen and helium after Big Bang. Some astronomers believe that the dust and gas were pulled together by gravitational force, which later formed the stars. ...
根据IRREGULAR GALAXY部分中There are many other shapes of galaxies that aren’t spiral or elliptical. They all fit into irregular category.可知,不规则的星系部分中还有许多其他星系的形状不是螺旋或椭圆。它们都属于不规则的类别。由此可知,星系主要是根据形状来进行分类。故选A。 (3)题详解: 推理判断题。
Galaxies are one of the most interesting things in space. They are all filled up with stars, planets, and dust. Did you know that you are made of star dust because our galaxy is filled with dust? Comets are falling on earth all the time spreading this dust. ...