Light of the earth photography

Looking at the earth from the night of the moon, of course, the earth will reflect sunlight. Astronauts have also taken many photos of the earth in space and on the moon. They can see the light blue light reflected by the earth. The photos of the earth taken by several satellites in space are the same, showing that the earth is a light blue planet reflecting sunlight. If the earth does not reflect sunlight, these photos will take a black planet, or they will not take pictures of the earth at all.

People and animals that reflect light and vision are visual and can see everything in front of them. But in fact, the image we see is not the real shape of the object, but the light reflected by the object is projected on our optic nerve, which produces an image in our cranial nerves. Although these rays can reflect the shape of an object, they are only images displayed on the brain, not physical objects.

The earth reflects sunlight. Most objects in the world reflect sunlight. These reflected rays can be captured by human eyes and form visual images in the brain. Unless it is a special object that can absorb light, such as a very black object, it can absorb light, so the black environment and black objects will make us unable to see clearly. The earth is not black, but has a blue sea, green forests and mountains, yellow-brown deserts, snow-capped plateaus and north and south poles. These bright colors will strongly reflect sunlight, so people can see the earth clearly from the moon or space.

There are three directions of sunlight on the earth. First of all, some sunlight will be absorbed by the earth to raise the surface temperature, and some plants will absorb sunlight for photosynthesis to produce other gases and energy. Sunlight also contains some infrared rays, which can pass through the earth and continue to radiate into the universe afterwards; The rest of the light will basically be reflected by the earth and the atmosphere on its surface, so that people can see the earth clearly in space, and if they are far away from the earth, they can also see that the earth is a shining star.