Essay Review Request.

*Please correct my below essay...*
This is a science fiction story. There is a small star far-far away from our galaxy, call Kerbol. Kerbol has 7 planets surrounding it. On the 4th of them are call Kerbin. Kerbin resemble much like Earth. Almost half of the planet surfaces are cover by oceans and rich in habitats. One of them is a species call Kerman. Kerman is a wonderful creature. They have technologies level that able for them to do interstellar exploration.
The Kerman resemble look like human. They are a bit shorter, and have greenish skin tone. Legend tell that they have photosynthesis ability like plant and able to live for a very long lifespan. They do not have clear gentle differences, and it is a bit mystery on how they reproduce.
Kerbin has 2 moons. They are call Mun and Minmus. The Kerman has their long ambition of visiting their moons for centuries.