Visible across much of North America, this March 3 event will offer a clear demonstration of celestial mechanics in action — a simple way for the public to observe how the sun, Earth, and moon move in relation to one another. The best part: No fancy equipment or technical knowledge is necessary for the experience.
Фото: Рамиль Ситдиков / РИА Новости
。业内人士推荐搜狗输入法下载作为进阶阅读
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