1078 years is still an absurdly long time, but in modern cosmology it counts as a dramatic revision. A recent theoretical study has pushed an old idea into unfamiliar territory: not only black holes, but also dense stellar remnants may eventually fade away through a Hawking-like process. The work from Radboud University argues that objects without an event horizon can also emit this sort of radiation, provided gravity curves spacetime strongly enough. That shifts Hawking radiation from a black-hole-only phenomenon toward something more general about gravity itself.
Stephen Hawking’s original insight, proposed in the 1970s, was that black holes are not perfectly black. Quantum effects near the edge of a black hole allow a tiny trickle of thermal emission, now known as Hawking radiation. Over immense spans of time, that leakage reduces a black hole’s mass. For astrophysical black holes, the process is so feeble that it remains far beyond direct detection, but its implications have shaped decades of work on quantum gravity, black-hole thermodynamics, and the fate of information in the universe.
The newer analysis revisits the usual emphasis on the event horizon. Instead of treating that boundary as essential, the researchers examined particle creation in the broader gravitational environment around compact objects. Their conclusion is that tidal gravity and spacetime curvature can separate particle pairs even outside a horizon. In that picture, the horizon is no longer the singular stage on which the effect appears; it becomes one special case of a wider mechanism. White dwarfs and neutron stars, long regarded as among the most durable products of stellar evolution, would therefore also possess an evaporation clock, just one that runs unimaginably slowly.
That change matters because white dwarfs were already central to far-future thinking. They are dense, cooling remnants of Sun-like stars and were often treated as among the last enduring luminous structures to disappear. According to the estimate highlighted in the new work, the lifetime of a white dwarf comes out to roughly 10 to the power of 78 years, vastly shorter than older extrapolations that stretched to 101100 years. “The final end of the universe is coming much sooner than expected but fortunately it still takes a very long time,” lead author Heino Falcke said.
The broader cosmological backdrop remains the familiar “heat death” picture, in which the universe expands, cools, and drifts toward a state with little free energy left to power structure or activity. In standard discussions, black holes dominate the final eras because their evaporation times are colossal; a solar-mass black hole requires about 1067 years to evaporate. What this new framework adds is a different ordering of the late universe. If compact stars also leak away through gravity-driven radiation, then the inventory of the deep future becomes less about a few exceptional objects surviving almost forever and more about a universe in which even the toughest remnants are temporary.
There is still a large gap between mathematical insight and experimental proof. Directly observing Hawking radiation from real black holes remains out of reach because the signal is extraordinarily faint. Laboratory analogs have reproduced related horizon physics in optical systems and ultracold matter, but those setups do not settle the astrophysical question. For now, the significance of the new result lies in theory: it treats evaporation as a more universal consequence of curved spacetime, and in doing so it redraws the timeline of the cosmos’s last chapter.
