GoKawiil
Tech News
Researchers led by Francesco Sannino of the University of Naples Federico II published a study in Physical Review D examining whether a black hole can divide into two separate black holes. They found that if a black hole spins at the maximum physically possible rate, its event horizon can form a pants-shaped structure in spacetime, producing two distinct black holes without violating the laws of thermodynamics.
A study slated for publication in Physical Review D proposes that neutrinos switching between types inside a collapsing star's core could help resolve long-standing mismatches between supernova models and observations. Current simulations of core-collapse supernovae largely ignore this flavor-swapping behavior, even though neutrinos play a central role in triggering the explosion. The researchers suggest accounting for these identity changes could bring predicted supernova rates and outcomes closer to what astronomers actually observe.