Human beings have longed for knowing the secret of the sky, the Earth and the Cosmos.

During that time, our ancestors could not find ways to explore those mysteries; however, now along with the progress of science, we have taken a great leap toward the exploration of the cosmos. People understand the formation of the Cosmos and each start system gradually and the discoveries forge a closer tie between the destiny of human and the Universe.

There are more than a hundred of billion Milky Way in the universe. About the distance of 8,000,000,000 years, we will see wavy Milky Way everywhere. Milky Way is the gravitationally bound collection of gas, dust, and numerous stars.

Our Sun is one of these stars. The Solar System began life in the Universe about 4,600,000,000 years ago.

How did the Solar System evolute? How did its nine Planets form and what are their features? Now let us explore this beautiful Solar System together.