Why Do We See the Sun as a Perfect Circle?

Why Do We See the Sun as a Perfect Circle?

The question why the Sun is circle, only seems to be simple one. And confirmation of this is the fact that the answer to the “childish” question, scientists have only been able to find in the twentieth century. The complexity comes from the fact that, as the Sun represents a huge globe of hot gases, in the sky above us, instead of the round light we are accustomed to seeing, we should observe a blurry, shining spot with no pronounced boundaries. And we see a circle. And this circle is quite limited, leaving even the impression of a solid surface...