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Startalk : everything you ever need to know about space travel, sci-fi, the human race, the inoverse, and beyond
with Neil deGrasse Tyson National Geographic, 2016 書
The universe
by Gail Saunders-Smith Steck-Vaughn, 2000 書
Space
Ben Denne, Eileen O'Brien ; illustrated by Andy Burton Usborne Publishing Ltd., 2001 書
