Stars shine because atoms fuse in their interiors, releasing energy. When a very massive star has exhausted its nuclear fuel, ...
A new relativity model suggests gravastars could form when dark energy creates an expanding mini-universe inside a collapsing ...
A black hole is supposed to be the last word in stellar collapse: matter falls inward, spacetime caves in, and a singularity ...
Could gravastars form from collapsing stars, generating mini-universes that counteract the gravitational collapse with dark ...