500 Million planets in our galaxy

The data from NASA's Kepler Telescope indicates that there are 50 billion planets in the Milky Way galaxy. Kepler has so far discovered 1,235 planets, 54 of which fall within the range of the "Goldilocks Zone," which fits the conditions of life on our planet Earth . Astronomer Seth Shostak estimates that there are at least 30,000 habitable planets within a range of 1,000 light-years from Earth. Scientists have identified that one in every two stars has at least one planet and that the planet in 200 stars is likely to provide the conditions of the origin of life as we know it. Scientists have made the first cosmic census of the planets in our galaxy. The figures are astronomical: there are at least 50 billion planets in the Milky Way galaxy of which at least 500 million are in an area that is not too hot and not very cold where life can exist.

 These figures were derived from the initial results of the Kepler telescope, which was designed to trap other planets in the universe. The Hable Zone, known as HZ in astronomy, is defined as the distance between a star and a planet-like planet that can retain its water on its surface. This zone is a junction of two regions that provide the opportunity for life. The first is located in the planetary system and the second in the galaxy, The planets and moons in those regions are more likely than others to be inhabited and thus able to tolerate a form of external life that resembles our lives. This concept does not include satellites (satellites) because there is not enough evidence and theories that predict that satellites may be inhabited considering their proximity to the planet. The populated area is usually referred to as the "Living Area", the "Equator Zone", the "Green Belt" and the Goldilocks.

 The concept of the inhabited area should not be confused with the housing conditions of the planets. While planetary housing only addresses the conditions required to sustain carbon-based life, the area of ​​the inhabited area is limited to providing the requisite conditions to sustain carbon-based life. It is likely that life is more likely to arise within the "inhabited area of ​​the periphery" and close to the star called CHZ in the solar system. And also in the Hungarian inhabited area called GHZ which is part of the larger galaxy (although research at that point is still in its infancy). The HGZ should be close enough to the center of the galaxy so that heavy elements can form enough to form the rocks or planets needed to sustain life conditions. These heavy elements are also required because they are the basis of the complex particles of life. On the other hand, heavy elements may not be necessary for all forms of life. General heavy elements are required for complex life forms on Earth.

 The name is derived from the story of the girl Gouldelox and the three bears, in which the girl chooses things from three sets of objects that belong to the bears, ignoring the extreme things In size (giant or very small, hot or cold .. etc) and decided to choose the middle things. Similarly, life-like planets follow the principle of Goldilocks. It is not far from the star and is not very close to it so that the water does not evaporate on the surface of the planet, that is to preserve the water on its surface. This is life, as we humans understand on the planet.

 However, there are planets in the inhabited area that do not host life (such as giant planets) and can also be called Gouldelox planets, but planet Earth is the strongest example of the planet Gouldelox.In 2007 a planet named Gliese 581d was found and in 2009 it was found in the populated area in terms of distance from the star. In 2010, a planet called Gliese 581 g, the world's most earthly planet, was discovered to this day. Gliese 581 g orbits around a red dwarf star Gliese 581 and is 20.5 light-years away from the constellation, The outer solar system of Gliese 581 is the fourth in the order beyond the star, and this discovery was announced by the Lake-Carnegie Cosmic Survey in late September 2010 and a decade later in astronomical observation.

 Ian Stewart and Jack Cohen in Evolving the Alien have criticized the hypotheses of inhabited areas for two reasons. The first is the assumption that the life of creatures on other planets has the same requirements for life as terrestrial creatures, and the second is that, based on the first assumption, (Jupiter's Moon) is a surface with a partial ocean environment that is similar to the deep ocean on Earth and with the discovery of creatures called extremophiles (organisms that are often present in the cell) In extreme conditions such as hot springs, polar ice creams, extreme heat conditions and pressure), the discovery of forms of life on the Europa Moon is possible even though it is located outside the boundaries of the manned zone CHZ. Astronomer Carl Sagan believes that life is also possible on giant supernovae (Saturn, Jupiter, Uranus, Neptune). If a form of life is actually discovered in those environmental conditions, the more restrictive hypotheses will be described as very conservative. It has been proved that life can evolve to overcome harsh conditions. Various levels of volcanic activity, lunar influences, planetary mass, and even radiative emission may affect radiation and temperature levels, which in turn change the planet's conditions to suit the appearance of life.