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期盼已久的天文奇观夜来了！"火星大冲"率先登场
source link: https://tech.sina.com.cn/d/s/2018-07-27/doc-ihfvkitx6262096.shtml
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来源：科普中国作为2018年的重磅天象之一，火星将于7月27日13时12分上演“冲日”表演，而且这次“冲日”特别之处在于这是十五年一遇的“大冲”。届时，人们将可以彻夜欣赏到这颗明亮的红色星球在夜空中闪耀。且慢？啥是火星？啥又是“大冲”（不是
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