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Glossary term: 火箭

Description: 火箭是一种常用于将航天器从地球表面发射到外太空的装置。为此,火箭通常由火箭发动机和燃料箱组成。火箭发动机也可用于在太空中控制航天器的运动,改变速度或进行航向修正。火箭发动机的基本原理是产生高速粒子流,通常通过燃烧火箭燃料来实现。当这种粒子流朝特定方向喷出时,火箭发动机就会向相反方向加速,这源于动量守恒这一物理基本定律。需要注意的是,这种粒子流不需要推靠任何物体来产生作用:火箭即使在近乎真空的太空中也能完美运行。

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Term and definition status: The original definition of this term in English have been approved by a research astronomer and a teacher
The translation of this term and its definition is still awaiting approval

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一枚联盟号火箭越过发射塔,将载人联盟号飞船送往国际空间站。

联盟号火箭发射

Caption: 2018年6月6日,联盟号MS-09火箭从哈萨克斯坦的拜科努尔航天发射场发射升空,将远征56号机组人员送往国际空间站(ISS)。任务组成员包括俄罗斯航天局的飞船指令长谢尔盖·普罗科皮耶夫、美国国家航空航天局的飞行工程师塞丽娜·奥农-钱斯勒,以及欧洲航天局的飞行工程师亚历山大·格斯特。
Credit: 美国国家航空航天局/乔尔-考斯基 credit link

License: CC-BY-NC-ND-2.0 Creative Commons Attribution-NonCommercial-NoDerivs 2.0 Generic icons