Gamma-ray bursts cut through space at close to the speed of light, leave a trail of celestial destruction and are powerful enough to wipe us out instantly.
To put their force into context, a single gamma ray photon is more powerful than a million of the visible photons that make up light.
Fortunately, down on earth, the ozone layer protects us from their force.
As Kurzgesagt explains, Gamma Ray Bursts GRBs take two forms.
Large GRBs last a minute and form when supernova die and collapse into a black hole.
The process takes millions of years, but once the stars are close enough to touch, they collide and the black hole forms.