Collapsar model

The Collapsar model explains how some of the universe's most energetic explosions, called long gamma-ray bursts, occur. It happens when a massive star exhausts its fuel and its core collapses under gravity, forming a black hole. Surrounding material then spirals into this black hole, creating intense jets of energy that shoot out from the star's poles at near-light speeds. These jets release enormous amounts of gamma rays, producing a bright, sudden flash seen across the universe. This process links the death of massive stars to the most powerful explosions we observe in space.