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The ghostly remains of long-dead black holes from another universe may be lurking in the depths of our own space-time continuum. That's the decision of a new written report from a group of scientists that include notes Hawking collaborator Roger Penrose. The researchers surveyed the catholic groundwork radiation, identifying spots that could mark the graves of ancient black holes from a previous incarnation of the universe.

This research pulls together several fascinating concepts in physics to speculate most conditions before and afterward a universe similar ours comes into existence. Penrose and his colleagues telephone call this conformal cyclic cosmology or CCC. The cycle may exist driven by the mode black holes abound and dice in the universe.

The current leading theory says that our universe will continue expanding and cooling until all that's left are black holes. According to Stephen Hawking's work decades ago, black holes slowly lose energy by leaking photons and gravitons — we call this Hawking Radiations. Then eventually, even the blackness holes in a universe like our ain will die.

That leaves just a soup of photons and gravitons, both of which have no mass and travel at the speed of light. Therefore, Relativity dictates these particles don't experience time or distance. A universe without time or distance starts to look a lot like the compressed pre-universe earlier the Big Bang. And so, perhaps it all just starts over, again and again.

The new report involved scanning the cosmic microwave background (CMB) for signs of a previous universe, simply there was a lot of interference from the current universe. Since the pre-universe singularities would be long deceased, at that place's nothing left to detect of them. Nevertheless, their impact on the universe from bleeding hawking Radiations for billions and billions of years should leave a mark.

A map of the universal Catholic Microwave Background radiation.

Study co-author and mathematician Daniel An ran a statistical analysis on the CMB, which started by ignoring regions of the sky where starlight overwhelmed the CMB. Next, he highlighted areas that had microwave frequencies in the expected range for a black hole grave marker. Finally, he compared the "best" matches to artificially generated CMB data, which should have no black hole remnants. The comparing showed that the locations could indeed exist from black holes in an before universe.

The scientific community is nevertheless far from convinced. A past paper from Penrose made a similar claim, but follow upwardly research pointed out several issues. It's up to other researchers now to assess the new evidence.

Now read: Astronomers Discover Tiny Galaxy Harboring Monster Black Hole, Astronomers Just Found the Largest Known Neutron Star, and Stephen Hawking's five Greatest Achievements