Dying Stars May Form New Universes Instead of Black Holes

A new theoretical study suggests that a dying star could create a new universe within itself, rather than collapsing into a black hole. This concept offers an alternative explanation for the fate of massive stars.

When massive stars exhaust their nuclear fuel, they begin to collapse under their own gravity. Current theory suggests this collapse leads to a singularity, an infinitely dense point hidden behind an event horizon, forming a black hole. However, singularities and infinite spacetime curvature pose challenges to known physics.

Researchers Daniel Jampolski and Professor Luciano Rezzolla at Goethe University Frankfurt proposed a dynamic solution to Albert Einstein's equations of General Relativity. Their work suggests that the collapse of a massive star could initiate the birth of a miniature universe. This new universe would expand due to dark energy, similar to the Big Bang that formed our own cosmos.

This outward expansion would counteract the star's inward gravitational pull. This process would halt the collapse before a black hole forms. The result would be a stable object known as a gravastar, which would not contain a singularity or an event horizon. Instead, it would be filled with dark energy beneath its outer layers.

Gravastars would be nearly as dense and massive as black holes, making them difficult to detect. This new model provides a potential explanation for how gravastars could form from ordinary matter. It addresses a question that scientists have debated for approximately 25 years.

Exploring alternatives to black holes helps scientists maintain an unbiased approach to unknown phenomena. The behavior of matter at extreme densities is not fully understood. This leaves room for new physical phenomena to emerge.