【用英语介绍的太空知识】Gaze upwards on a dark night, and you will see the ‘Milky Way’, a glowing ribbon made up of many individual stars. This is our first clue to the fact that that stars are not uniformly distributed throughout space, but clustered together to form galaxies.
Galaxies can vary in size between a hundred thousand and three thousand billion solar masses, and can be broadly split into different classes, depending on their shape. Our own Milky Way Galaxy contains about two hundred billion stars. It is a spiral shape, which is why, when viewed from our position about two thirds of the way along one of the arms, it appears as a band across the sky.
Gazing out into the Universe reveals thousands upon thousands of galaxies. These galaxies tend to be grouped together in clusters, and these clusters in turn are grouped into superclusters. It appears the Universe has structure on many different scales.
秒懂生活扩展阅读
- 智妙手机也用手写笔吗为什么
- 公共事业局是什么单位
- 桶自洁功用要多长时间
- 鲜粽叶需要煮多久才能用 鲜粽叶需要煮的时长
- mysql基本操作命令 mysql常用命令行大全
- 诉诸的意思
- 工业互联网领域一般是指 什么是工业互联网及工业互联网的应用
- win11运行安卓软件 Win11装安卓App用起来感受如何
- .net core框架 特斯拉为何使用.net core技术框架
- 什么是红外线和紫外线 红外线和紫外线的区别和应用