What is outer space? Outer space is the region beyond a planet's atmosphere. For Earth, it begins about 100 kilometers (62 miles) above sea level. The line separating the atmosphere and outer space is called the Kármán line. The termouter spaceand theuniverseare roughly equivalent, except...
Many of us wonder what is in outer space. When we look up at the night sky, we can see stars and the moon. 26 One thing we don't see is pieces of junk in space. Now more and more countries are sending rockets and satellites (卫星) into space and make it very crowded. Spa...
Scientists are still unclear about a number of space phenomena due to the difficulty of studying them. There is great debate, for example, about properties like wormholes and whether they exist at all.Answer and Explanation: Outer space is made of nothing, which is why it's called space. ...
What is space 相关知识点: 试题来源: 解析 spaceKK:[]DJ:[]n.1.空间[U]The table takes up a lot of space.这张桌子占去很多地方.2.宇宙,太空,外层空间[U][E]We witnessed a missile being launched into outer space.我们目睹一枚导弹向外太空发射.3.场所,空... ...
Humanity is no longer just exploring outer space for the sake of leaving flags and footprints. On February 6, the SpaceX Corporation conducted a successful first flight of its Falcon Heavy rocket, capable of carrying 63,800 kg (140,700 lb) to Low Earth O
From ourEarth-bound perspective, outer space is most often thought to begin about 62 miles (100 kilometers) above sea level at what is known as theKármán line. This is an imaginary boundary at an altitude where there is no appreciable air to breathe or scatter light. Passing this altitude...
二、完形填空。(共10小题,每小题1分,计10分)Many of us wonder what is in outer space. When we look up at
Treaties between nations can become complex to negotiate as each nation has something that it wants to achieve through the treaty. The Outer Space Treaty has been signed and ratified by 109 countries.Answer and Explanation: The Outer Space Treaty of 1967 specifies that space is open to ...
【题目】Many of us wonder what lies in outer space. When we look up at the night sky, we see stars, the twinkle of a moying satellite and occasionally a distant planet. But one thing we don't see is the millions of pieces of junk filling up space. It's this debris(庆弃物) that...
What is space 扫码下载作业帮搜索答疑一搜即得 答案解析 查看更多优质解析 解答一 举报 spaceKK:[]DJ:[]n.1.空间[U]The table takes up a lot of space.这张桌子占去很多地方.2.宇宙,太空,外层空间[U][E]We witnessed a missile being launched into outer space.我们目睹一枚导弹向外太空发射.3.场所,...