宇宙杂志文章内容概括英语

第一章 相对论简史：爱因斯坦是如何为20世纪两个基本理论，即相对论和量子论奠基的。第二章 时间的形态：爱因斯坦的广义相对论使时间具有形态。这如何与量子论相互和谐。第三章 果壳中的宇宙：宇宙具有多重历史，

Why Is Gravity in Space Not the Same as Earth?Every object in the universe pulls on every other object. This is called gravitation, or gravity. But the strength of that pull-- of gravity --depends on

spaceship / 5speisFip/ 宇宙飞船 sphere / sfiE/ 天体,星 作文:Our Place In Space There are approximately four hundred million galaxies in the universe. We can see only a small part of our is the Milky

moon. Human beings creat spaceships to explore the space. Till now human beings had landed on the moon but there is still a long way to land on the Mars. It's so fantastc!