Solar winds might destroy Alien life in exoplanets by killing off habitable water worlds

Recently, NASA announced its new three dimensional model of for better detection of the habitable exoplanets. But according to a latest research, the alien life in those habitable exoplanets might be in danger. The study revealed that the alien worlds covered in water might not be comfortable for living things because some of them would have their atmospheres stripped from them in solar storms.

Normally, scientists believe that liquid water and atmosphere are two of the most important ingredients for life. But after analyzing these things in an exoplanet they are now shocked that getting atmosphere and liquid bodies in a planet is not sufficient enough for supporting life, rather it could make alien life challenging. A group of researchers used computer simulations to test how atmospheres composed mostly of water vapor would hold up in the face of stellar wind — the gas and charged particles blown out from a star toward the planets — and other space events. They found out that certain star-planet matchups could kill off an atmosphere before life has a chance to form.

The study outlined that Ocean planets, also referred to as ‘water worlds’ are anticipated to be volatile-rich, and possess oceans that are conceivably hundreds of kilometers deep. And those planets which revolve closely to their star, and have a water world, are more prone to danger. Although through simulations scientists discovered that planets with “Earth-like oceans” would not have their atmospheres stripped and their water evaporated over timeframes of billions of years. But they are concerned about the habitable zones of M-dwarfs which undergo a very rapid change. The escape rate of water ions would be 2-3 orders of magnitude higher than on Earth even without considering space weather effects.

So, it can be concluded that these stellar winds as well as solar storms a might have resulted in the depletion of oceans billions of years ago. The more the solar fire is close to the habitable zone, the more the temperature is triggered because the UV rays of star break the water molecules into water ions and they escape through the atmosphere. The study informed that rapid desiccation would have important consequences for the evolution of life on such planets, especially with regard to oceanic and coastal biodiversity, productivity, and food webs. The latest observations regarding the effect of ocean world and atmosphere on alien life will definitely help scientists narrow down their search for alien life and their understanding of how planets and the water bodies on them evolve.

 

Tags: exoplanets, habitable

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