Home / Science / One of the brightest explosions ever recorded occurred in The world’s ‘cosmic backyard’

One of the brightest explosions ever recorded occurred in The world’s ‘cosmic backyard’



An international team of scientists used the High Energy Stereoscopic System in Namibia to obtain the best-ever observation of the brightest gamma-ray burst ever recorded.

The stellar explosion known as GRB 190829A occurred just 1 billion light-years away in the constellation Eridanus. This may seem like a walk up the hill. But a typical gamma-ray burst is 20 billion light-years away.

A gamma-ray burst occurs when a star collapses on its own. It forms a black hole and emits enormous amounts of gamma rays.

NASA describes “gamma-ray bursts as the most active and brightest electromagnetic event since the Big Bang. And it can release more energy in 1

0 seconds than the sun would emit over a projected lifetime of 10 billion years.

The scientists published a study in the journal Science about their observations. The reflectance of the GRB 190829A can be measured for three days due to its very close proximity.

Edna Ruiz-Velasco from the Max Planck Institute for Nuclear Physics in Germany said: “We were able to determine the spectra of GRB 190829A to 3.3 tera-electron volts. which is about a trillion times the energy of visible light photons.

“This is what’s so special about this gamma-ray burst – it takes place in our cosmic backyard where very high-energy photons are not absorbed in collisions with background light on their way to Earth. when it occurs at a greater distance than in the universe.”

The research team consisted of 230 scientists from 15 countries: Namibia, South Africa, Japan, China, Australia, Germany, France, United Kingdom, Ireland, Italy, Austria, Netherlands, Poland, Sweden and Armenia.


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