地球历史的早期,太阳系跟目前大不相同。当太阳很年轻的时候,阳光是微弱的,几乎没有为地球提供热量。然而,尽管地球有一个“冷酷”的开端,但其表面并没有冻结。多年来,科学家们一直提出各种理论解释有关“年轻太阳光线微弱问题”。其中多数理论是以这个观点为基础:早期地球一定 Early in the history of the Earth, the solar system is very different from the present. When the sun is young, the sun is weak and barely provides heat to the earth. However, despite the beginning of a “cold” earth, its surface is not frozen. Over the years, scientists have been proposing various theories to explain about the “weak sun light” issue. Most of the theories are based on this idea: the early Earth must have been