Life, as we know it, consists of six chemical elements ̵
But a new study published in Science Advances suggests that the building blocks for life on Earth stem from a galactic collision with another Mars. Size over 4 billion years ago.
"We have found that all the evidence – isotopic signatures, the carbon-nitrogen fraction and the total amount of carbon, nitrogen and sulfur in the bulk silicate earth – has a moon-forming impact with a Mars-rich and sulfur-rich core" said Damanveer Grewal in a statement of the study.
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The hypothetical planet was often referred to as Theia, including a study by scientists from UCLA
The study finds that the Earth's core has no evidence of carbon, nitrogen and sulfur, leading scientists believe that elements from an interstellar body come to Earth Researchers hypothesized that life could have come on a series of meteorite attacks, but the This new study suggests that it was a gigantic collision.
"The nucleus does not interact with the rest of the earth. But everything about it, the cloak, the crust, the hydrosphere and the atmosphere are interconnected, "Grewal added. "Material Cycles Between Them."
In a separate study, published in October 19459016, The Astronomical Journal described in detail the effects of comet-like objects that can "alienate" microbial life over thousands of light-years
According to Gizmodo, Rajdeep Dasgupta wrote similar work in 2016, but the new study looks at the three most important elements – carbon, nitrogen and sulfur – and how they fare after the hypothetical collision.
"What we found is that all the evidence – isotopic signatures, the carbon-to-nitrogen ratio, and the total amount of carbon, nitrogen, and sulfur in the bulk silicate earth – is consistent with a moon-forming effect that is volatile Carrier brings. Planet with a sulfur-rich core, "added Grewal.
Dasgupta said that rocky, earth-like planets could potentially sustain life if they came from huge clashes with other planets.
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"This study suggests that a rocky, earth-like planet has more chances To acquire vital elements as it forms and grows out of gigantic collisions with planets that have studied various building blocks, possibly from different parts of a protoplanetary disk, "Dasgupta said in the statement.
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