These are created when massive objects such as stars undergo runaway collapse under their own gravity to become what general relativity insists is a singularity: a point of infinite density, surrounded by a gravitational field so strong that, within a certain distance called the event horizon, not even light can escape.
4 All of America is turned into paper clips In which AI undergoes runaway improvement and "escapes into the internet".
The processes that may undergo thermal runaways due to exothermic reactions are at the heart of the risks of accidents.
Especially under abusive conditions, full size batteries may undergo thermal runaway that generates a sharp rise in temperature, with potential for explosion and/or fire.
The star is 6 billion years old, 1.5 billion years older than the Sun, and is in the stage of its life when its radius and luminosity begin to increase, suggesting that Kepler-452b may have undergone or will soon undergo a runaway greenhouse effect in which its surface water will boil away, similar to what happened on Venus.
One frightening scenario was the "China Syndrome": the idea that molten radioactive fuel undergoing a runaway reaction might burn its way through the bottom of the reactor's pressure vessel and containment structure, and then down into the Earth.
When such an event occurs, the stars undergo a runaway fusion reaction, giving off a tremendous amount of light and energy, and utterly destroy both white dwarfs that gave rise to the event.
Second, because the fusion reaction is not a chain reaction, a fusion reactor cannot undergo a runaway chain reaction, or "meltdown," as can happen in a fission reactor.
A cell becomes cancerous when the genes that stop runaway growth are sabotaged by mutations.
Though there are rumors of an underground network that helps runaways, no one knows for sure.
