Tag: Supernova

Tree rings or supernova affect the footprint of the earth

Science and Technology Daily News from the University of Colorado Boulder geologist Robert Brackenridge’s latest research has shown that a large-scale energy explosion that occurred thousands of light years away may have already affected the biology and Traces are left in geology.


Betelgeuse’s distance is closer than previously estimated, and a supernova will explode in 100,000 years

Betelgeuse is a red supergiant star located in the constellation Orion and a member of the Winter Triangle. For a long time, Betelgeuse has been regarded as one of the most threatening stars to the solar system. The reason is that Betelgeuse may explode supernova at any time. Especially since last year, Betelgeuse has experienced many significant dimming phenomena. The visual magnitude has dropped by almost two levels within a few months. It was once speculated that it was a prelude to a supernova explosion.


2.5 million years ago, a supernova exploded near the earth, and the fate of many creatures ushered in a turning point

In the universe, extremely terrible things happen every day, such as gamma-ray bursts, black holes engulfing, compact star mergers, and supernova explosions. Scientists’ latest research results show that about 2.5 million years ago, a supernova explosion occurred near the earth, which caused a drastic change in the earth’s environment and brought a turning point in the fate of earth’s organisms.


5 billion times brighter than the sun, NASA photographed supernovae 70 million light-years away, so bright

Supernova explosion is an extremely violent celestial activity in the universe. Only massive stars with a mass more than 8 times that of the sun can this phenomenon occur at the end of its main sequence phase. When a supernova occurs, it will At that moment, the star will release more energy than the total nuclear fusion of the sun over ten billion years, and some can even reach dozens or hundreds of times the total energy of nuclear fusion in the sun’s lifetime.