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A never-before-seen astronomical object has been discovered in the very early universe – and scientists believe it's a mashup of a black hole and a huge star.

Researchers were using the James Webb Space Telescope (JWST) to hunt for the earliest galaxies when they spotted an impossibly bright and incredibly red object.

It looked like a vast star, stretching out to cover an area as large as our entire solar system.

However, scientists were shocked to see that this bizarre dot was somehow pumping out 100 billion times more energy than any star can physically produce.

Lead author Dr Rohan Naidu, of the Massachusetts Institute of Technology and University of Hawai'i, says: 'That means you can't be powering this by nuclear fusion, which is the energy source that sits at the heart of all the stars we have.'

In a new paper, published in the journal Nature, Dr Naidu argues this must be an entirely new form of astronomical object known as a 'black hole star'.

The black hole star, dubbed MoM–BH*–1, is an enormous cloud of gas powered, not by fusion, but by the terrible forces of a central black hole.

The researchers estimate that this black hole has a mass 100,000 times greater than our sun and creates so much energy that it shines through its dense gas cocoon.

Scientists have discovered a never–before–seen object in the early universe that is a mashup of a black hole and a star (artist's impression)

Dr Naidu and his colleagues didn't set out to find a black hole star, but were trying to investigate the very bright galaxies that appear extremely early in the universe's history.

But, while conducting their 'Miracle or Mirage' survey, the researchers spotted a dot that was different to anything they had seen before.

Just as smoke from a wildfire can make the sky over nearby cities turn crimson, clouds of dust in the universe often give sources of light a distinctive red tinge.

However, this red dot's other characteristics didn't match up with what scientists have come to expect from a drifting cloud of gas and dust.

Dr Naidu says: 'The way its light is almost entirely red and abruptly disappears below a certain wavelength is so dramatic that there is no comparison among any prior set of objects.'

That drop-off in light, known as a Balmer Break, is usually associated with dense gases soaking up photons in the atmospheres of stars that are a few hundred million years old.

This phenomenon isn't rare, and scientists can even see it in the light coming from Vega, one of the brightest stars in the night sky.

However, the Balmer Break coming from this red dot was the deepest scientists had ever seen, ruling out 'ordinary' stars as a potential source.

This 'black hole star' is a solar–system–sized cloud of dense hydrogen that is powered, not by fusion like a normal star, but by an enormous black hole with a mass 100,000 times greater than our sun

Even stranger, the red dot's light didn't contain any signatures of metal that would normally be found in a star, and only contained hydrogen and helium.

'It is a very special thing to find an object with no comparison given the vast stores of data on billions of stars, galaxies, and black holes that we have in astronomical archival databases,' Dr Naidu says.

'But it made us wonder if we were seeing a new kind of "stellar atmosphere", but on a spectacular scale'.

The researchers ran various computer simulations to see what combinations of astronomical features would explain the dot's distinctive colouration and brightness.

But it was only when the team replaced the star with an active black hole cocooned in hydrogen that their simulations started to match what they were seeing in reality.

The simulation that was the closest match for MoM–BH*–1 was a vast black hole 100,000 times the mass of the sun surrounded by a cocoon of hydrogen so dense that it resembles the surface of a solar system-sized star.

'The rapidly feeding black hole at its centre is the source of its energy,' Dr Naidu explains.

'The energy may be transmitted in the form of radiation or winds or shocks that slam against the dense shrouds of gas enveloping the black hole.'

Scientists say this could explain the origins of the 'little red dots' that NASA's James Webb Space Telescope has spotted forming in the first few hundred years of the universe

That would explain the extreme brightness, the light-blocking Balmer Break, and the lack of anything other than hydrogen and helium that the astronomers observed.

Critically, the researchers think that MoM–BH*–1 could be just one of hundreds of black hole stars that have been hiding in plain sight.

The JWST has spotted hundreds of 'little red dots' that appear in the first hundred million years of the early universe, but seem to have vanished by the present day.

Now, Dr Naidu and his co-authors believe that each and every one of these little red dots could be hiding a black hole star at their core.

'Black Hole Star may lie at the heart of every Little Red Dot,' says Dr Naidu.

'The redness of the little red dots is because their blue light is soaked up by the dense shrouds of gas blanketing the Black Hole Star.

'All the peculiarities and puzzles surrounding the Little Red Dots begin to make sense once you place black hole stars at their centres.'