Marvel at the source of the 10 great rivers in the world
As world famous rivers, they have a source of modesty that is hard to believe.Confluent rivers are not suitable for color matching
Due to velocity, water flow and temperature, many rivers in the United States, Switzerland, India and Germany are composed of many streams, but the colors are not mixed.Roses blurred in the universe
The rose-shaped nebula is one of the most impressive astronomical images of the week.