cartwheel galaxy 中文意思是什麼
cartwheel galaxy
解釋
車輪星系-
The unique shape of the cartwheel galaxy with its huge rim - larger than the diameter of the milky way galaxy - is likely due to a collision with one of the smaller galaxies on the lower left several hundred million years ago
車輪星系獨特的外觀及龐大的外緣（比銀河系的直徑還要大）可能起源於幾億年前與左下某個小星系的碰撞。
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