The history of astronomy is a history of receding horizons.
天文学的历史就是地平线后退的历史。
-- Edwin Powell Hubble 哈勃
The history of astronomy is a history of receding horizons.
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The history of astronomy is a history of receding horizons.
天文学的历史就是地平线后退的历史。
-- Edwin Powell Hubble 哈勃
