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What if black holes aren't actually holes? A massive star burns through its final fuel; gravity is no longer held in check, and the star collapses in on itself. Classically, the result is a black hole containing a singularity—a point of infinite density at the very center. However, for the general theory of relativity, this point is a major headache: Einstein’s equations work flawlessly right up to that point but break down at it, as they cannot describe space with infinite curvature. A pair of physicists from Goethe University Frankfurt has proposed a workaround. In their solution to the equations of general relativity, a collapsing star transforms not into a black hole, but into a so-called "gravastar"—an ultra-dense object that mimics a black hole from the outside but has a different internal structure. It features a shell of ordinary matter, while the interior is filled with dark energy; the outward pressure of this energy prevents the structure from collapsing. There is no singularity and no event horizon—and consequently, none of the paradoxes associated with them. The secret lies in how a gravastar is born. The scientists demonstrated that, at the moment of collapse, a tiny "universe"—essentially a miniature Big Bang—can ignite within the star. The same dark energy driving the expansion of our cosmos pushes the object outward from within, halting the collapse just an instant before a singularity can form. Interestingly, Yampolsky discovered this solution back in his master's thesis. However, it is too early to celebrate. The model requires exquisite precision: the matter must be perfectly uniform, and the equilibrium is fragile. A single stray photon could tip the gravastar into transforming into an ordinary black hole. Moreover, we currently lack the means to distinguish one from the other in the sky. As Rezzolla notes, seeking alternatives does not mean doubting the existence of black holes; science is simply obliged to examine both the conventional and the exotic. History has repeatedly shown that the latter eventually becomes the former.