Scientists created a temporary black hole that lasted for 10 million billion billionths of a second. The heat generated was 300 million times the temperature of the surface of the Sun.
To create the black hole, scientists used a particle accelerator. They shot two beams of gold nuclei at each other at the speed of light. The intense heat of the collision broke the nuclei into quarks and gluons, the most basic building blocks of matter. A ball of plasma was formed, which is detected as it absorbs jets of particles produced by the collision, so creating a black hole.