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Astronomers discover lots of of ‘hidden’ black holes — and there could also be billions and even trillions extra

February 8, 2025
in Astronomy
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Astronomers discover lots of of ‘hidden’ black holes — and there could also be billions and even trillions extra
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When the cosmos’ first stars exploded in spectacular supernovas, they could have unleashed monumental quantities of water that flooded the early universe — and doubtlessly made life attainable simply hundreds of thousands of years after the Big Bang, new simulations counsel.

Nonetheless, this concept clashes with our present understanding of cosmic evolution and will probably be extraordinarily tough to show.

Water is among the most plentiful compounds within the universe, in accordance with NASA. Apart from Earth, astronomers have discovered water in a number of locations all through the photo voltaic system, together with scattered above and below the surface of Mars, contained in the ice caps of Mercury, surrounding the shells of comets and buried in underground oceans on several major moons. Exterior our cosmic neighborhood, researchers have additionally detected water on distant exoplanets and inside huge clouds of interstellar fuel that permeate the Milky Method.

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Till now, scientists assumed that every one this water progressively constructed up over billions of years as hydrogen, essentially the most plentiful ingredient within the universe, mixed with oxygen that has been solid within the hearts of stars and expelled through supernovas. However within the new examine, uploaded Jan. 9 to the preprint server arXiv, researchers simulated the explosive deaths of large, short-lived early stars — which every had a mass equal to round 200 suns — and located that they might create the circumstances wanted for water to take form.

The water from these stellar explosions would possible have shaped on the hearts of dense clouds of hydrogen, oxygen and different parts left behind by stars. It might have had concentrations as much as 30 occasions greater than the water seen floating in interstellar house throughout the Milky Method, the researchers wrote within the examine, which has not been peer-reviewed but.

Associated: Could a supernova ever destroy Earth?

A simulation of a star exploding

Researchers imagine the water would have shaped on the heart of dense clouds of fabric expelled by the exploding stars. (Picture credit score: Getty Photos)

If right, the brand new findings would have large implications for scientists’ understanding of galaxy evolution and extraterrestrial life.

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“Moreover revealing {that a} major ingredient for all times was already in place within the universe between 100 million and 200 million years after the Massive Bang, our simulations present that water was possible a key constituent of the primary galaxies,” the researchers wrote.

Early cosmic uncertainty

One of many largest points with the brand new examine is that scientists have by no means straight noticed one of many early stars that the researchers are modeling, referred to as inhabitants III stars. As an alternative, researchers have solely not directly noticed a number of of those stellar trailblazers by analyzing the stars that were birthed from their remains, so it is nonetheless not sure what they had been actually like.

If there was plentiful water within the early universe, it will additionally counsel that the cosmos ought to have gathered far more water than we presently see in our environment.

One clarification for this that has been posited by different scientists is that the universe underwent a drying-out interval throughout which massive portions of water had been misplaced, in accordance with Universe Today. Nonetheless, it’s unclear what the reason for this occasion might have been.

“There may be additionally the truth that whereas water shaped early, ionization and different astrophysical processes could have damaged up many of those molecules,” Universe At this time reported, that means that the water from the primary supernovas could have been short-lived.

Though water is a key ingredient for all times on Earth, there’s additionally no assure that its presence within the early universe would have made extraterrestrial life extra possible.



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