<\/p>\n
Researchers have discovered that black holes that formed before the Big Bang may still exist today as surviving relics.<\/p>\n
These ancient objects carry mass and structure from early cosmic stages and will provide new ways to explain how galaxies formed and why invisible matter dominates them.<\/p>\n
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Within this framework, relic black holes do not start from a single origin, but instead emerge from a contracting universe before returning to expansion.<\/p>\n
By tracing how structures behave through their transitions, Enrique Gastanaga of the University of Portsmouth has shown that some compact objects persist through “cosmic bounces.”<\/p>\n
A cosmic bounce refers to a universe in which matter is compressed to its limits, initially shrinking to a very small and tightly packed state.<\/p>\n
Rather than collapsing into nothing, that compression ceases and reverses, causing the universe to expand outwards again to form the large, growing universe we observe today.<\/p>\n
The universe then begins to expand again, and any structures that were able to survive the transition move forward.<\/p>\n
Rather than forming anew after a hot beginning, these survivors retain properties formed during the initial collapse, representing additional relics that may still influence the universe today.<\/p>\n
Standard cosmology still explains a surprising amount of how the universe expanded and how matter spread out.<\/p>\n
This photo is also consistent with faint remnant light from the early universe and the wide spread of galaxies.<\/p>\n
According to Planck measurements, dark matter, the invisible mass seen by gravity, was about five times the amount of normal matter in the universe 13.8 billion years ago.<\/p>\n
Rather than breaking physics completely, the bounce model reopens these problems by replacing a single explosive initiation with an inverted collapse. <\/p>\n
In Einstein’s equations, the regular Big Bang regresses to a singularity, a point at which current physics is no longer able to make useful predictions.<\/p>\n
Gastanaga argued that warning signs are important because infinity often tells physicists that the description is beyond a safe range.<\/p>\n
“Singularities often indicate that a theoretical description has reached its limits,” Professor Gastanaga said. <\/p>\n
His alternative is that the contraction reaches an extreme but finite density and then reverses before the mathematics no longer makes sense.<\/p>\n
Near this turnaround, the model says that extreme compression built quantum pressure that pushed back further collapse.<\/p>\n
The idea borrows from the well-known stabilizing effect, as similar pressure already helps white dwarfs and neutron stars avoid infinite compression.<\/p>\n
In this illustration, the rebound mimics inflation, which is a very rapid initial burst of expansion without adding another trigger.<\/p>\n
This proposal attempts to tackle several puzzles at once, as the same configuration could also lead to faster scaling today.<\/p>\n
Size determines what survives after a bounce, as only objects larger than about 295 feet can stay beyond the cosmic horizon and avoid disruption.<\/p>\n
Objects or ripples that remain outside the limits will not be repositioned because no force can act across them during traversal.<\/p>\n
Calculations suggested that surviving artifacts may include gravitational waves, ripples in space-time, and even compact objects or dense clumps.<\/p>\n
That wide menu is important because different survivors will leave different fingerprints on the galaxy and skies that follow.<\/p>\n
In galaxies, relic black holes would act like invisible masses already inferred from orbital velocities and the widespread configuration of galaxies.<\/p>\n
If they are present in large quantities, they will behave as dark matter because gravity does not care whether the matter glows or not.<\/p>\n
Unlike many particle ideas, this version requires no undiscovered components, just ancient objects that survived previous collapses.<\/p>\n
Abundance is the hard part. This is because too few artifacts explain almost nothing, and too many violate existing constraints.<\/p>\n
Another payoff could emerge during the early stages of galaxy formation, when pre-existing black holes could give the first galaxies a head start.<\/p>\n
Webb has already discovered compact red objects, including tiny red dots, that may be involved in feeding the black hole. <\/p>\n
“If the supermassive black hole was already present immediately after the bounce, we wouldn’t have to start from scratch when building the first galaxies in the early universe,” Gastanaga said.<\/p>\n
That would ease the race to explain why supermassive black holes appeared so early in the history of the universe.<\/p>\n
Evidence for a pre-Big Bang collapse phase, when the universe was shrinking rather than expanding, would come indirectly through patterns that no telescope has yet identified.<\/p>\n
One of the targets is a relic gravitational wave background that preserves motion from earlier stages.<\/p>\n
The other is the cosmic microwave background radiation (CMB), leftover light from the hot, young Universe whose subtle patterns may hold old scars.<\/p>\n
Even small effects from ancient, compact objects can bend light or stir up hot gases, influencing or ruling out future investigations.<\/p>\n
Big claims invite tough checks, but this depends on assumptions about how the structure formed during contraction.<\/p>\n
These assumptions set how many relics will survive, how huge they will become, and whether they will be grouped in ways that astronomy will notice.<\/p>\n
Competing ideas still explain dark matter in terms of particles, and other models try to explain early black holes without bouncing.<\/p>\n
“But if the universe experienced a bounce, the dark structures that shape today’s galaxies could be remnants of the space age that preceded the Big Bang,” Gastanaga added.<\/p>\n
Taken as a whole, this proposal turns black holes into something that could be a messenger from before its hot beginnings, rather than just a remnant.<\/p>\n
Better maps of early light, compact objects, and gravitational waves will determine whether this idea remains provocative or becomes useful.<\/p>\n
The research will be published in a journal Physical Review D<\/em>.<\/p>\n \u2014\u2013<\/p>\n Like what you read? Subscribe to our newsletter for fascinating articles, exclusive content and the latest updates.<\/p>\n Check us out on EarthSnap, the free app from Eric Ralls and Earth.com.<\/p>\n \u2014\u2013<\/p>\n<\/div>\n #Black #holes #formed #Big #Bang #exist #continue #shape #galaxies #day<\/p>\n","protected":false},"excerpt":{"rendered":" Researchers have discovered that black holes that formed before the Big Bang may still exist today as surviving relics. These ancient objects carry mass and structure from early cosmic stages and will provide new ways to explain how galaxies formed and why invisible matter dominates them.
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