Is the most beautiful planet in the universe the earth?

I think the earth should be the most beautiful planet in the universe, because it has nurtured generations of human beings, and it should be the most beautiful in people's hearts! She deserves it. The most beautiful galaxy in the universe is usually considered as a spiral galaxy.

The spiral galaxy is the largest and most beautiful galaxy observed at present. Its shape is like a vortex in a river, hence its name.

The side of the spiral galaxy looks like a discus, with a convex center and a flat periphery. A number of long, narrow and bright light spiral arms extend spirally from the bulge, which is the place where gas gathers and the cradle of stars. When the spiral galaxy leans towards us, it is an ellipse.

In spiral galaxies, most stars are concentrated in flat disks, while a large number of interstellar matter, gas and open clusters are concentrated in spiral arms.

The spiral arms are shaped like tree rings, from which we can see the age of galaxies. The looser the spiral arm, the younger the galaxy. There are a lot of gas in the spiral arms of these galaxies, and a lot of new stars will be produced here in the near future. In galaxies where the vortex is not obvious, most of the gas has been transformed into stars, and the stars are older. Galaxy, Andromeda, Ursa major, etc. Are well-developed spiral galaxies.