Wake

Pluto was a planet about 6 billion kilometers away from the Earth. Previously, it was called the nine planets in the solar system together with the other eight planets, including the Earth, Jupiter, Mars, etc. However, later world-renowned scholars discovered that it was unable to clear other objects in its orbit except satellites, so it was kicked out of the list of the nine planets.

As the coldest planet recognized in the solar system, scholars around the world believed that there was no...