EPISODE · Feb 17, 2020 · 7 MIN
77万年前，地球最后一次磁场逆转历时22000年
from 天文随心听｜讲述宇宙与人的故事
地球是一颗美丽的生命星球，而像地球这样美丽的生命星球，在浩瀚的宇宙中也是非常稀有的。为什么地球能够成为生命星球，还能够诞生智慧生命人类？其中有地球外部的原因也有地球本身的原因。
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77万年前，地球最后一次磁场逆转历时22000年
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