Monday 2 January 2023 – 11:02 AM WIB
Techno live – Supernova it can destroy the biosphere and flood it planet with radiation which is deadly. The study adds a new potential threat in the form of a special type of supernova that could destroy the planet’s ozone layer years after the initial explosion.
when bintang giants die in huge explosions called supernovae, temporarily become some of the brightest objects in the universe. A single supernova can eclipse the combined light of hundreds of billions of stars.
For example, the closest star Betelgeuse will explode at any moment. Even though the star is more than 600 light-years away, when it goes supernova, it will be the brightest object in our sky, second only to the Sun.
Betelgeuse will be visible during the day, shining brighter than a full moon. For several weeks, at the height of the explosion, it would be so bright it would cast shadows in the middle of the night.
Despite their terrifying brilliance, the visible light portion of a supernova represents only a small fraction of all energy output. In addition, visible light in large quantities can cause blindness, and most worrisome is the high-energy radiation associated with supernovae, usually in the form of X-rays and gamma rays.
Supernova explosion of a giant star.
High-energy radiation can catalyze oxygen, eroding the protective ozone layer earth. Without the ozone layer, life on our planet’s surface would experience a complete burst of ultraviolet radiation from the sun, potentially leading to extinction.
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The flash of radiation occurs within the first few seconds of a supernova. The biggest threat will come later. Cosmic rays which are subatomic particles can be accelerated to nearly the speed of light and eventually explode from the vortex hundreds or thousands of years later.
