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                                        Chapter 4 Universe scavenger
                                
                                                                                        
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                                        Chapter 6 Set off for the sun!
                                
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... ear a star can be considered the largest star in the universe. The comet tail stretches out, and the maximum length can reach more than 100 million kilometers, just like a huge broomstick, sweeping cosmic space. But when I got closer, I realized how weak the comet is.
After walking through the comet tail for more than half a month, Xiao Yu collected less than five kilograms of water, and the thinness of the material in the comet tail can be imagined. This collection efficiency made Xiao Y ...
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