Chinese astronauts take photos with the earth. What does the earth look like in outer space?

When we look at the earth from outer space, the earth is a planet with a dark blue appearance.

We may not feel it when we live on the earth, but the size of the earth in the universe is like a small drop of water. Because its surface is covered by a lot of air, mostly seawater, the earth has less fresh water resources. The ratio of deep sea to land in the world can reach seven to two. In other words, the land resources settled by human beings only account for 29% of the earth's land area, while 7 1% of the earth's land resources are covered by the deep sea.

However, if we distinguish carefully, the scenery on the ground is colorful. In broad daylight, we can see green plateau lakes, dark brown deserts, bright red mines and dazzling clouds. At night, the glittering and translucent lighting effect depicts the inland as a country. The most striking thing in outer space is that the earth is the only star with obvious signs of life. With the change of seasons, green plants cause atmospheric refraction in the air, and human factors can be seen in outer space to present the night view of urban starry sky.

Why is there rubbish all around the earth now?

People live in a pile of rubbish. This is because there is really a lot of waste around the earth. Even if some countries have announced their recognition, the full name is space junk. Some people may not know. Just like today in the new era, many countries need to compete in the space field, so they will continue to send space equipment, from communication satellites to detectors to space stations, which have a service life. Once damaged, it can no longer be used, and will eventually become scrap iron.

According to statistical analysis, there are at least100000 tons of space junk, among which more than 4000 communication satellites have been damaged, all of which are rocket fragments and communication satellite fragments. Space junk is a kind of space junk that has a great negative impact on the earth, which not only endangers human observation of the universe on the earth, but also blocks sunlight and so on.