Explanation: A superkilonova is a proposed cosmic explosion that combines the characteristics of a supernova and a kilonova in a single event.

A kilonova occurs when two neutron stars collide, ejecting heavy radioactive elements such as gold, platinum, and neodymium. As these elements decay, they emit light mainly in the optical and infrared parts of the spectrum.

A superkilonova differs because it has an additional energy source that makes the explosion brighter, bluer, and possibly longer lasting than a normal kilonova.

Source- TH