Life in Europe may be beyond our reach

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2018-07-25 06:00:09

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Life in Europe may be beyond our reach Source:

In our Solar system, has a private Hot: Europe, ice-covered moon of Jupiter where there may be alien life. Unlike Hoth, the surface of which was full of life, Europe life can thrive in the ocean under its frozen surface. But the proof of this can be just beyond the reach of our experiments.

If life is somewhere there, it must leave behind some chemical sign, or biosignature showing the presence of certain molecules. These signatures may be plumes of gas shooting out of the cracks of the surface of Europe, as well as on the surface — if they can survive the intense radiation of Jupiter.

"Our results also show that amino acids, though in much lower concentrations also would remain at a detectable level... for over 10 million years at a depth of 10 centimeters, even in the most severe radiation environments on the surface of Europa," the researchers write in a paper published today in Nature Astronomy.

the

On Jupiter's moon could be hiding life

Here on Earth, there is plenty of life that thrives, that is to say, "alien", eating by the Sun, heat and chemical substances rising from the bottom of the ocean. There is evidence that under the icy surface of Europa has an ocean of water. Perhaps, in this water there is life, the kind that thrives in the oceans of the Earth.

Scientists have to find a way to detect this life, who will be able to fly through the plumes of Europe. But the material from the ocean could be on the surface, for example, moving through these loops or in the process of melting and re-freezing of the ocean.

Scientists from the jet propulsion Laboratory of NASA and the applied physics Laboratory at Johns Hopkins tried to find out whether the molecules are pointing to life, such as amino acids on the surface, to survive under the influence of radiation from the stern of the magnetosphere of Jupiter. Around Jupiter there is a magnetically active region completely inhospitable to biology, not to mention our own scientific equipment. This magnetosphere accelerates particles to high energy that can destroy the chemical evidence of life in search of which we would be able to send their probes.

Using previously collected data about how the amino acids survive the radiation, freezing in the ice, as well as data on the most severe radiation environments of Europe, scientists have found where amino acids are almost certainly survived. Hunters life could try to find biosignature 10 inches below the surface, though in dilute concentrations anywhere on the planet. However, their chances of finding life has increased significantly if they are engaged in the analysis of young ice (who is only 10 million years) in places with low radiation. Such ice can be found in Europe in the mid-and high latitudes away from the equator, where the moon is right looking at Jupiter.

While this is just a model. Will require travel to Europe to determine whether under the surface there are signs of life. Physicist John Cooper of Center. At NASA Goddard said that the fall of the meteorite could break biosignature partially and that the lander will make a "last verdict regarding this, we'll find biosignature or not, which could hide from radiation under the tiny piece of ice".

We do not know whether there is in Europe life, but scientists hope Yes. Regardless of what we're sending, we need to dig deeper.

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