Wednesday, April 22, 2026

Exploding Stars, Black Holes, and the Forbidden Gap

This illustration shows a pair-instability supernova explosion. These types of explosions leave nothing behind, not even a black hole. They can explain the black hole Forbidden Gap in black hole masses, according to new research. Image Credit: Gemini Observatory / NSF / AURA / Joy Pollard.

An international team led by Monash University has uncovered evidence of a rare form of exploding star, helping to shed light on one of the most cataclysmic events in the universe. At the end of their lives, most massive stars collapse into black holes—objects with gravity so strong that not even light can escape. But some are completely destroyed in pair-instability supernova explosions. This can explain the so-named "Forbidden Gap" in black hole masses.



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