Many other planets 160 light years away don’t have the same luck as Earth, being “stripped” by similar life support objects..
A team of scientists led by astronomer San Bruton from the University of Illinois at Urana – Champaign (USA) has discovered another dangerous effect that supernovae can have on Earth-like planets.
Supernova is a stellar explosion, which occurs when a star dies, releasing countless ferocious cosmic rays into its surroundings. THE This terrifying energy particle can impact nearby planets for hundreds or even thousands of years.
Supernova can hit Earth-like planets
Supernovae can strike Earth-like planets – (Graphic image by NASA).
160 light-years away from us, unlucky but Earth-like planets are being damaged by powerful supernovae surrounding them, which means robbing them of habitability or, more tragically, of existence on them.
This result comes from observations based on 31 supernovae collected by scientists Mission Swift and NuSTAR from NASA, as well as XMM-Newton X-ray Observatory by ESA (European Space Agency).
This new study shows that not only is it exposing living things to radiation, but this supernova is also drastically changing the chemistry of the planet’s atmosphere.
If Earth were to experience a close explosion, this process could wipe out a significant portion of the ozone, which protects life from other cosmic rays that can damage their DNA.
This impact was large enough to cause a mass extinction.
This casts doubt on previous findings showing that Earth’s ancient mass extinction events were linked to when multiple supernovae exploded, with the simultaneous deaths of many isotope-attached animals and plants exhibiting extraterrestrial effects detected in tree rings.
More recently, there is strong evidence that the supernova, which occurred 2-8 million years ago, 65-500 million light-years from Earth, is still quite distant, but shows signs of being associated with mass extinctions.
Proof that it is a hot air bubble called local bubble in which we are nestled, low-density and still expanding, surrounded by a shell of cold gas about 1,000 light-years in diameter.
Luckily, unlike the unlucky distant planets, there are currently no supernovas threatening to explode near us, so at least we can be safe for the foreseeable future.
ƝThe research has just been published in a scientific journal Journal of Astrophysics.
Article source: NTD
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Many other planets 160 light years away don’t have the same luck as Earth, being “stripped” by similar life support objects. Band…
