A so-called "planetary nebula" is a confusing misnomer because these clouds have nothing to do with planets. As a medium-size star nears the end, it puffs out into a red giant — about 100 to 1,000 times its original size — eventually engulfing the space around it, including any nearby worlds.
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,这一点在下载安装 谷歌浏览器 开启极速安全的 上网之旅。中也有详细论述
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Wordle today: Answer, hints for February 27, 2026
——“扎扎实实、踏踏实实地搞现代化建设”