Life on other planets may be more diverse than on Earth
Will there be life on other planets differ from the Earth? To answer this question, we can refer to the diversity of animal life on the planet, which was presented in the history of our world. If such a variety of species could appear on earth, why should it not be in the other corners of the universe?
Who knows, maybe somewhere in the universe life it looks that way
On what planet is possible to have life?
For a long time, astronomers believed that our solar system is unique in its kind, since around our star turn as much as 8 planets! It was not until 1988, when the first extrasolar planet was detected in orange giant Gamma Cephei. Since all the planets discovered outside of our system, became known as exoplanets.
The orange giant Gamma Cephei
The discovery of the first extrasolar planets has accelerated the search for life outside our solar system. Huge distances to other worlds means that it is virtually impossible to achieve with the help of modern space probes, so scientists are working with tools of remote sensing, as telescopes. Despite the fact that currently we only have the opportunity to observe these distant worlds, even this may be enough to understand exactly what the climatic conditions prevailing in the different exoplanets. Detailed interpretation of these observations requires the development of complex models of the global climate and evolution, allowing scientists to determine which of the exoplanets probably life could exist.
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Dr. Stephanie Olson of the University of Chicago, said that some of the planets in our galaxy, or even in our neighborhood can have even better conditions for the prosperity of intelligent life than the Earth itself. According to her opinion, it is necessary to look for life on those exoplanets that have a more favorable circulation of the ocean. These worlds may be better suited to support life, which may even be more advanced than life on earth.
Do we have the opportunity to once exposed to such creatures? Well, time will tell
Team Stephanie Olson also believes that life on other planets may well begin to develop on earth scenario. So, the main motive of this idea is the fact that life in the Earth's oceans depends on a phenomenon known as upwelling. Upwelling (or upward flow) returns all the necessary nutrients from the ocean floor in the sunlit part where photosynthetic life dwells. For example, algae. The more developed a similar movement in the ocean, the development will be beings living on the surface of the water reservoir.
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What exoplanets can support life?
In order to understand what exoplanets are really able to support the development of life on its surface, scientists have modeled many possible potentially habitable worlds. For example, scientists have found that the most effective upwelling, and consequently the most developed life can be observed in the oceans on such planets, which have a slower speed of rotation around its axis. In addition, habitable planets must be surrounded by high-density atmosphere and have continents.
Approximately so can look potentially habitable Trappist-1 system
Another conclusion of researchers is that, most of all, the Earth is not really suitable for life. And, quite possibly, the researchers have found the most potentially habitable world anywhere near the star Trappist-1, the life which is now difficult to find because of the lack of technical equipment.