错误:搜索内容不能为空,请输入英文关键词
错误:关键词超出字数限制,请精简
高级检索

Interplanetary Travels - Visits to our Cosmic Neighborhood

  • Manfred Gottwald

摘要

Beyond the Moon begins interplanetary space. The further one moves out into it, the smaller it appears from there the Earth and eventually resembles the other large planets of the solar system, as they can be seen from Earth either through small telescopes as discs, even with details on the surface and in the atmosphere, or with the naked eye as bright objects in the sky.