How many planets are there in the solar system? 2005年,阋神星的发现引发了巨大争议。其发现者之一、天文学家迈克·布朗(Mike Brown)在NASA的官方新闻材料中将其称为“第十颗行星”。当时,阋神星被认为略大于冥王星,因此如果冥王星被视为行星,阋神星似乎也应享有这一身份。即使后续观测表明阋神星比冥王星稍小,
结果1 题目How many planets are there in the solar system? A. Seven B. Eight C. Nine D. Ten 相关知识点: 试题来源: 解析 B。太阳系中有八颗行星,这是基本的科普知识。A 选项七颗不对,C 选项九颗不准确,D 选项十颗是错误的。反馈 收藏 ...
The answer to the question of how many planets there are in the Solar System is not as simple as you might have thought! Here is a brief answer to this question which shows how the number of solar system planets, known to man, has changed throughout the
How many planets are in the universe?References By Briley Lewis last updated April 29, 2025 We currently know of more than 5,800 planets beyond the solar system, but we've only found the tiniest fraction of the exoplanets that astronomers think lie elsewhere in the universe. Comments ( 0...
How many planets (planet) are there in the solar system(太阳系)?2. We can finish the work with less(little) money and fewe(few)people than they can.3. As you probably (probable) know, I'm going to Shanghai tomorrow.4. Mr. Zhao and his students played an important part in making...
百度文库 其他 How many planets are in our solar system?How many planets are in our solar system? A. 4 B. 7 C. 8 D. 9 答案: c) 8©2022 Baidu |由 百度智能云 提供计算服务 | 使用百度前必读 | 文库协议 | 网站地图 | 百度营销 ...
How many planets are there in our solar system?A. 8B. 9C. 10D. 7 相关知识点: 试题来源: 解析 A 根据国际天文学联合会(IAU)2006年的定义,行星需满足三个条件:1)绕太阳运行;2)具有足够的质量形成近似球体;3)能清除轨道附近的其他天体。冥王星因第三条未达标被重新分类为矮行星。因此,太阳系目前...
1. Which planet do you live on?I come from the planet Earth.2. How many planets are there in the solar system?There are nine planets in the solar system.1
The sun and its planets are called the solar system. The solar system is a small part of the universe. Scientists have launched many spaceships to explore other planets in the solar system. Some spaceships have gone beyond the solar system. However, no one has discovered any life in space...
百度试题 结果1 题目1. How many planets(planet) are there in the solar system(太阳系)? 相关知识点: 试题来源: 解析 答案见上 反馈 收藏