outer space
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外太空, 宇宙空间
the space outside the earth's atmosphere
- Outer space is characterized by the absence of air, so astronauts must wear spacesuits to survive the vacuum and extreme conditions.
外层空间的特点是缺乏空气，因此宇航员必须穿着宇航服才能在真空和极端条件下生存。
- The International Space Station (ISS) orbits Earth in outer space, providing a laboratory for scientific experiments in microgravity.
国际空间站（ISS）在外太空绕地球轨道运行，为微重力下的科学实验提供了一个实验室。
- Satellites in outer space help with communication, weather monitoring, and scientific research by orbiting the Earth and other celestial bodies.
外层空间的卫星通过绕地球和其他天体运行，有助于通信、天气监测和科学研究。
- Astronomers study outer space to understand the origins and structure of the universe, including the formation of stars, planets, and galaxies.
天文学家研究外层空间以了解宇宙的起源和结构，包括恒星、行星和星系的形成。
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