1 | Refers to Kepler's laws |
2 | Describes the structure and elements of the solar system. |
3 | Refers to the working principles of communication satellites. |
4 | Explains the formation of the seasons and phases of the moon |
5 | Covered by the body and the formation of the universe and explains the general structure. |
6 | Describes the features of the formation of stars and galaxies |
7 | Defines the phases of the life of the stars. |