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LASER-wikipedia2
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English
[en]
Further away lies the 250-million-light-year-diameter Boötes void, a huge space largely empty of galaxies.
Chinese
[zh]
在更遠處有一個直徑2億5,000萬光年的牧夫座空洞,一個空曠、沒有星系的巨大空間。
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