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Asteroid impacts can be vital for exoplanets to sustain life, says study

The effects of asteroids in the past may have caused significant damage to Earth's life, but new research suggests that the impact of the "Goldfinches" of the cosmic rock may be an important ingredient in helping the lives of other planets.

Research, which has not been published in a scientific journal but can be read in the arXiv repository, indicates that when a space object such as an asteroid or comet hits the planet, two events occur: the material of the object is added to the mass of the exoplanets and part of the atmosphere from the surrounding area goes into space.

"With sufficient bombardment, planets beneath the precipice are expected to lose their atmosphere, while those above could have atmospheres enhanced by volatile matter," said an abstract study. "The level of change in the atmosphere depends on the total bombardment that one planet is experiencing, and so on the (usually unknown) planets and planets of the system, although massive distant planets would have low cumulative efficiency."


The summary goes on: "The habitable zonal planets around the stars are lightened by the stars. the development of life. "

In an interview with Live Science, lead author Mark Wyatt said that large impacts could harm the planet's chance of sustaining life, but a smaller one could help under conditions of life support, adding to their atmosphere is the so-called "volatile matter" (such as water and carbon dioxide).

Researchers note that the size of the "Goldilocks" for an asteroid will be between 60 feet wide and 3,300 feet. Anything larger of that, approximately 1 to 12 miles would take the atmosphere more than

Previous studies indicate that our moon was formed about 4.5 billion years ago by an asteroid colliding with Earth when it was still forming. [19659003] The asteroids in our solar system routinely carry water. A recent study suggests that the second open interstellar object, Comet 2I / Borisov, may carry water from it beyond the solar system. [

One category of celestial objects that may not be so lucky, she's a Class M star, probably because of the number of habitable exoplanets already discovered, according to the study.

"The habitable zones of planets around lower light illumination are more susceptible to stripping the atmosphere, disturbing M stars as hosts of life-giving planets, if Earth-like bombing favors the development of life," adds the abstract.

"For M stars, their low luminosity means that the habitable zone is much closer to the star than to a star like the sun," Wyatt added in an interview with Live Science.

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