The closest supernova to Earth to explode. What that means for humans?
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Betelgeuse — one of the brightest stars of the Northern hemisphere of the planet
The Star Betelgeuse in the constellation Orion is one of the brightest stars in the sky of the Northern hemisphere of our planet. Despite the fact that the age of this reddish celestial body is only 8.5 million years — “infancy” space standards — Betelgeuse is dying, risking about to explode and turn into a bright spot in the night sky of the Earth, which is not inferior in brightness to a glow during a full moon. However, although the scientific world for quite some time watching the activity of the stars, supernova explosion for some reason and not happening, and she Betelgeuse simply dims gradually. Do physics was wrong in the matter of evolution of stars?
will Explode if Betelgeuse?
As you know, giant stars die in a very dramatic way, — their last moments of life associated with strong disaster — supernova explosion and the creation of a bright nebula of gas and dust. The core of the dying star transforms into the so-called , which is an extremely dense space object. If the size of the dead stars were huge, even by cosmic standards, the place of her death is formed — the weirdest object in the Universe, has a powerful force of attraction. Fortunately for us, the star Betelgeuse, because of its size, was to end his life in the form of a supernova with all the ensuing consequences therefrom, however, for some reason this is not happening. According to an article published on the portal , Betelgeuse, probably, such original way gradually included in the final phase of the supernova dimming until, till gradually collapses, triggering a powerful release of energy. Due to the fact that a star located at a distance of 642,5 light-years from Earth, the supernova explosion will be visible even from the surface of our planet, representing the brightest object in the night sky for several weeks. Scientists believe that a similar phenomenon will be the second in the history of mankind observed the explosion of a dying object after a similar event that occurred in 1054 ad it is believed that it was an exploding star that gave birth to the modern Crab nebula.
Blast that led to the birth of the crab nebula, was visible from Earth in 1054 ad.
Researchers believe that that dims — is not surprising. The thing is that Betelgeuse belongs to the class of so-called variable stars — stars, whose brilliance is changing with time. However, despite the fact that the star could explode tonight, reducing its brightness may indicate the presence of a very interesting physical processes occurring in Betelgeuse. Thus, internal instability may partially explain the emergence of waves of energy inside the star, moving the substance from the inside out, and alternately forcing the star to expand, then shrink. In addition, changes in brightness of a space object can occur and due to its magnetic activity, which is very difficult to simulate with the help of modern equipment. Anyway, the closest to a Star supernova is just about ready to explode, showing the people of Earth really big . And most importantly — is absolutely safe.
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