Habitable Planet Essay Sample

There are more than 100 billion galaxies in the universe, and each galaxy contains hundreds of million stars. Therefore, it is possible to assume that the Earth is not the only planet where life exists. In our Milky Way galaxy, there are about 50 billion planets, 500 million of which are potentially suitable for life.
The ideal candidate for the new home of mankind could be a super-Earth - rocky planet (with a high content of heavy elements) with a differentiated planetary body structure and weight from 1 to 2 - 3 Earth masses. It is desirable that such planet would be in the habitable zone of a star with a fairly mild radiation and long-term evolution. The best candidates for this are Stars with a medium weight that belongs to class K (orange dwarfs) with a term of life in 2 - 3 times longer than life term of the Sun. Of course, the planet has to have only one star.
The atmosphere of the planet should not have toxic gases such as methane and ammonia. For the life to appear, the atmosphere should include oxygen, carbon dioxide and nitrogen.
Inhabited worlds must have a shallow ocean shelf and a plurality of evenly distributed of archipelago over the surface, which increases the biological productivity and provides a mild climate without sharp temperature fluctuations. A good indication of the habitability of the planet may be the existence of the biosphere. Such as cyanobacteria that produce oxygen and photosynthetic plants.
I believe that the planet should have only one moon, like Earth's. That is not intensified volcanic activity of the planet, but stabilized the slope of the axis of its rotation.
The search for the habitable planet has taken a lot of money already. But whether we will find joy when we finally reach it? Time will show.