Description: 航天器是为在外太空旅行而建造的飞行器。通常是通过某种火箭发动机推进，向一个方向喷射气体或等离子体，以向反方向加速。不载人的航天器称为非载人航天器或机器人航天器，例如用于探索的各种卫星、太空望远镜或太空探测器。另一方面，载人航天器需要为其乘员提供生存条件，例如大气增压、辐射防护和温度调节。可以返回地球的航天器称为可回收航天器；回收后可以再次发射的航天器称为可重复使用航天器。旨在提供长期基地（如在地球轨道上）的航天器称为空间站。

Related Terms:

• 火箭
• 人造卫星
• 空间站
• Space Telescope

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

The OAE Multilingual Glossary is a project of the IAU Office of Astronomy for Education (OAE) in collaboration with the IAU Office of Astronomy Outreach (OAO). The terms and definitions were chosen, written and reviewed by a collective effort from the OAE, the OAE Centers and Nodes, the OAE National Astronomy Education Coordinators (NAECs) and other volunteers. You can find a full list of credits here. All glossary terms and their definitions are released under a Creative Commons CC BY-4.0 license and should be credited to "IAU OAE".