Life on other planet
The necessary and basic conditions for life on Earth and any other life supporting(possibly) Planet. It was thought that there are six main building blocks required for all life on Earth, which are carbon, hydrogen, phosphorus, nitrogen, oxygen, and sulfur as well as many other elements in smaller amounts. Life on Earth also requires water as the solvent in which biochemical reactions take place. Water is considered as the basic need for life. The secret to life is liquid water, which translates into location. “Life cannot survive in hot conditions like on our sun. Life needs to be where it is not too hot and not too cold, and at a temperature at which liquid water can exist.” Thus, When we are looking for the Planets supporting the life, it is important to pay special attention to places which can support liquid water, either at the surface or subsurface of the celestial body. Sufficient quantities of carbon and the other major life-forming elements, along with water, may enable the formation of living organisms on other planets with a chemical make-up and average temperature similar to that of Earth. Pure water is useful because it has a neutral pH due to its continued dissociation between hydroxide and hydronium ions. As a result, it can dissolve both positive metallic ions and negative non-metallic ions with equal ability. Due to their relative abundance and usefulness in sustaining life, many have hypothesized that life forms elsewhere in the universe would also utilize these basic materials. However, other elements and solvents could also provide a basis for life. Silicon is most often deemed to be the probable alternative to carbon.
Carbon is fundamental to terrestrial life for its immense flexibility in creating covalent chemical bonds with a variety of non-metallic elements, principally nitrogen, oxygen andhydrogen. Carbon dioxide and water together enable the storage of solar energy in sugars, such as glucose. The oxidation of glucose releases biochemical energy needed to fuel all other biochemical reactions. The Temperature must not be too hot or too cold. The gases in atmosphere must not be toxic. The temperature should be suitable for supporting the life of plants. Silicon life forms are proposed to have a crystalline morphology, and are theorized to be able to exist in high temperatures, such as on planets which are very close to their star. Life forms based in ammonia (rather than water) have also been suggested, though this solution appears less optimal than water. The region around a star in which life-supporting planets can exist is known as the habitable zone (HZ). Many Projects, missions and researches are searching for the Life On Other Planets.