地球的诞生离不开太阳系的形成。大约在46亿年前，太阳系的形成始于一个巨大的分子云。这些分子云主要由氢、氦及少量重元素组成，经过重力的作用，逐渐坍缩形成了一个旋转的盘状结构。

Since ancient times, the sun has been known as a giver of light and heat, a source of life. Plants are coaxed from the Earth ...

Emerging evidence suggests that plate tectonics, or the recycling of Earth's crust, may have begun much earlier than ...

The significance of this discovery lies in its potential to bridge the gap between simple molecular structures and the ...

How old is Earth? Our planet's age is known from a variety of sources, from rocks on our own planet to ones from the moon.