Mysteries in Space 在線電子書 圖書標籤:
發表於2024-11-13
Mysteries in Space 在線電子書 pdf 下載 txt下載 epub 下載 mobi 下載 2024
In this book, readers follow scientists as they try to unravel four mysteries in space: what was the huge fireball that caused an explosion in Siberia in 1908? Why do the Sun's two poles change places every eleven years? How were the strange spiraling canyons on Mars's polar caps formed? Has life ever existed on Mars?
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Mysteries in Space 在線電子書 pdf 下載 txt下載 epub 下載 mobi 下載 2024