Why does the sun look red?

In fact, the real color of the sun is white, not the red or yellow we see.

The reason why the sun is red or yellow for us is mainly because of the earth's atmosphere. As we know, the colors of sunlight include red, orange, yellow, green, blue, indigo and purple, among which purple has the shortest wavelength and red has the longest wavelength!

The earth's atmosphere scatters sunlight into shorter-wavelength colors, such as blue, indigo and purple, while longer-wavelength colors, such as red, orange and yellow, are not easily scattered.

These scattered wavelengths are observed by our eyes, so the sun looks red, orange, yellow and other colors. Those scattered wavelengths cause the color of the sky, which is why the sky is blue during the day!

The sun may also be green.

In fact, scientists have put forward another theory-the sun is green. According to the research of scientists, the brightest color in the light is actually green, because green is the strongest band of solar energy output, and the peak area of the sun is in the green band! The main source of energy received by the earth is the green light in the sun!

So many scientists think that the sun is actually green! Not only that, the peaks of most stars in the universe are green, and even scientists at the John Hopkins Observatory put forward the view that the whole universe is green!

But in fact, the human eye is not that complicated. When a lot of green light is mixed with other colors, the human eye can't distinguish green light, so it can only be simply regarded as white! Only in rare cases can the naked eye see some green spots!