人类来自星星–第 1 层
01-05-2025 07:00
恒星来自巨大而寒冷的气体和尘埃云。这些云又大又重。
小部分聚集在一起，就形成了一颗小恒星。这颗小恒星叫做原恒星。恒星的内部会变得很热。它开始了一种叫做核聚变的特殊过程。这使得恒星闪闪发光，寿命长久。小恒星比大恒星寿命更长。
当恒星耗尽所有燃料，它就会发生变化。大恒星会爆炸它们将物质送入太空。这些物质造就了行星，甚至造就了人类。我们的身体里有碳和氧 著名科学家卡尔-萨根说，我们来自恒星。恒星是我们的一部分。我们都是宇宙的一部分。
您可以在第 3 层次部分观看原始视频。
当云层的小部分聚集在一起时形成的小恒星叫什么名字？
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