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If there is life in the solar system other than Earth, Jupiter’s moon Europa and Saturn’s moon, Enceladus, are two of the most likely places for them to hold on to.
However, what are the alien creatures in these bodies is likely not related to ours, according to a new study.
The study, presented at the annual fall meeting of the American Geophysical Union, the Purdue University geophysicist Jay Melosh, and looked at the concept of “lithopanspermia,” an idea that is life is to jump from one planet to the other through the rocks, which were ejected into space, according to the Space.com that is the first mention of it in the news.
In 100,000 simulated ejection from Mars, matter, Melosh, found that only a very small fraction of the rock — 0.0000002% to 0.0000004% for Enceladus, and 0.00004% to 0.00007% in Europe — and in the end get it on the market. He used three different ejection speeds are simulated: 1, 3, and 5 km / s.
In the global ocean, with a unique chemistry and internal heating, Enceladus has become a very promising lead in the search for worlds where life could exist.
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Lithopanspermia is similar to panspermia, the hypothesis that life on Earth originated from microbes in the area which have been by way of accident, due to items such as fabric of space, meteoroids and asteroids, according to an article on NASA’s web site.
With the help of the baseline, that is, about 1 ton of Martian rocks to hit the Earth once a year, Melosh has estimated that Europe will see an average rate of about 0.4 grams of Martian material, and is 2 to 4 milligrams, for Enceladus.
So, the bottom line is: If life is to be found in the oceans of Europa or Enceladus, it is likely that, with the help of the seeds, the Earth, Mars or (especially) in a different solar system,” Melosh said at the conference, according to the Space.com.
NASA’s spacecraft Galileo captured this color composite image of Jupiter’s moon Europa back in 1997.
(NASA/JPL/University of Arizona)
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Melosh added that it will take about 2 billion years ago a meteorite from Mars hitting Enceladus. If there are living organisms in this Martian space rocks, it is possible for them to be able to survive if the speed is on the low end of the range, he put forth, but if the speed is higher, the survival, it would be difficult to set up, he added.
In June, NASA said it would send a delegation to one of the other moons of Saturn, Titan, which is also supposed to be able to have the house back to life. To be launched in 2026, the mission, known as Dragonfly, a laboratory, flying dozens of promising locations on Titan, after their arrival in 2034.
Two months later, NASA confirmed that it would launch a mission to Europa, which is a ride that should be able to answer, or that the icy object could become inhabitable for humans and for life.
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