Big Bang small

1999/05/01 Elhuyar Zientzia Iturria: Elhuyar aldizkaria

• Astrofisika

On January 24, astronomers discovered an impressive explosion of gamma rays in a remote area of the Universe. This explosion has been the largest explosion observed by the human being, and in this case observations have been made for the first time in different wavelengths. According to astronomers, it has been the biggest explosion that has been known after the Big Bang, in a young distant galaxy. New stars are born in this galaxy.

Although gamma-ray explosions are known, astronomers have never had the opportunity to measure this phenomenon with different tools. The consequences of the observations are impressive: according to observations made with light rays, the explosion has occurred at 9 billion light-years, at 2 thirds of the distance of the entire Universe.

The cause of this phenomenon remains the mystery. According to a well-known astrophysics theory, it occurs when the giant star becomes a black hole. However, according to another theory, neutron stars are produced by colliding with a black hole.