Did life migrated to earth?
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Our solar system is consisting of sun and nine planets. In this solar system life exist on earth. But we are not sure that life had existed on other planets and may there are chances that life may be still present in that planets. Recent NASA studies revealed that presence of water is found in Mars. From the data obtained from Mars exploration rovers of NASA it can be seen that water has flowed in Mars in the recent past.
Scientist believes that in earlier time life had existed on other planets like Mars, Jupiter, Saturn etc. Maybe life has been evolved on Europa Jupiter’s moon. In Europa presence of water can be seen in below its icy surface. Titan which is one of the biggest moons of Saturn is rich in organic compounds. Life may be originated in Titan. In last year space explorations revealed the presence of a large ocean in the surface of one of the moon Enceladus.
It may be strange to hear that life has existed on these planets. But the possibility and evidences are saying so. In Venus the temperature is 900 degree Celsius and atmospheric temperature is 90 times of earth’s atmospheric pressure. Venus is not habitable today. But life may be existed on Venus too. These evidences say that life existed on all these planets. There is a possibility that life had jumped from one planet to other. If it had so suppose a particle from Mars enters the earth’s surface, because of friction of air that substance will burn at high temperature and life on that particle will die. From the studies of materials of mars it is evident that some materials of mars can withstand the high temperature without burning. This is an important fact when considering the possibility of transfer of life or transpermia. In the past two decades all the meteors came to earth were from mars. The gases locked inside these meteors have similarity with earth’s atmospheric gases. Also some micro organisms present on earth are capable of withstanding high temperatures.
Now studies are going that life came into exist on earth due to transpermia. In order for this Russia is planning to launch a space vehicle loaded with micro organisms to space to study that if they are capable to withstand the rash atmosphere of the space. For this they have to overcome the magnetosphere. It is a belt or ring where intensity of radiation is immense. This journey will last for 32 months. This experiment will not be able to predict that life originated on mars. But it will be able to say that life came to existence on earth due to transpermia. If the experiment came successful, in future we may me living on mars.