Stephen Hawking was RIGHT! New model shows primordial black holes could account for all dark matter

In 1974, Stephen Hawking and his doctoral student Bernard Carr proposed that primordial black holes, hypothetical black holes that existed soon after the Big Bang, could be the elusive dark matter first theorized in 1933 – and 47 years later, this theory could be proven.

Astrophysics at Yale, the University of Miami and the European Space Agency (ESA) have refined the famous psychist’s proposal and created a new model of how the early universe may have formed.

The new model shows that the first stars and galaxies would have formed around black holes, which had the ability to grow into supermassive black holes by feasting on nearby gas and stars, or by merging with other black holes .

“If most primordial black holes were ‘born’ at a size of about 1.4 times the mass of Earth’s sun, they could potentially represent all dark matter,” said Priyamvada Natarajan, professor of astronomy and physics. at Yale, article theorist.

“Primordial black holes, if they exist, may well be the seeds from which all supermassive black holes form, including the one at the center of the Milky Way,” she continued.

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In 1974, Stephen Hawking and his doctoral student Bernard Carr proposed primordial black holes, which are hypothetical black holes, existed shortly after the Big Bang and could be the elusive dark matter first theorized in 1933 – and 47 years later. , their theory could be tested

Many experts suggest that around 85% of all matter in the universe is dark matter – but for such a large amount it has never been seen or detected.

Black holes, on the other hand, have been observed and we even have a photo of them to prove their existence.

Hawking and Carr argued that during the first moments of the Big Bang, which happened 13.8 billion years ago, “lumpy” regions that had extra mass may have formed in the universe. and turn into black holes when they collapsed.

Their theory, however, did not catch on among the scientific community, but the new study shows that with a few modifications, Hawking may have been right.

The new model shows that the first stars and galaxies would have formed around black holes, which had the ability to grow into supermassive black holes by feasting on nearby gas and stars, or by merging with other black holes .

The new model shows that the first stars and galaxies would have formed around black holes, which had the ability to grow into supermassive black holes by feasting on nearby gas and stars, or by merging with other black holes .

“What I personally find super exciting about this idea is how elegantly it unifies the two really difficult problems I’m working on – probing the nature of dark matter and the formation and growth of dark matter. black holes — and solves them all at once, says Natarajan.

Solving the mystery of primordial black holes would also solve another cosmic puzzle that has baffled scientists – the vast amount of radiation that has been detected from distant, dark sources scattered across the universe.

Natarajan and his colleagues said growing primordial black holes would exhibit “exactly” the same radiation signature.

The existence of primordial black holes could finally be determined by the James Webb Space Telescope, scheduled for launch on December 22, and ESA's Laser Interferometer Space Antenna (LISA) mission announced for the 2030s.

The existence of primordial black holes could finally be determined by the James Webb Space Telescope, scheduled for launch on December 22, and ESA’s Laser Interferometer Space Antenna (LISA) mission announced for the 2030s.

The existence of primordial black holes could finally be determined by the James Webb Space Telescope, scheduled for launch on December 22, and ESA’s Laser Interferometer Space Antenna (LISA) mission announced for the 2030s.

The mission of the James Webb Telescope will be to find the first galaxies that formed in the early universe and see stars forming planetary systems.

LISA, meanwhile, will be able to pick up gravitational wave signals from the first mergers of primordial black holes.

“If the first stars and galaxies formed already in the so-called ‘dark age’, Webb should be able to see the proof,” says astronomer Günther Hasinger of the European Space Agency.

James Webb is expected to reveal new and unexpected discoveries and help humanity understand the origins of the universe and our place in it.

One of the goals is to go back in time 13.5 billion years to see the first stars and galaxies that formed, a few hundred million years after the Big Bang.

The telescope will mainly observe the universe in the infrared, while Hubble has examined it since its launch in 1990 mainly in the optical and ultraviolet wavelengths.

Webb has a much larger light-gathering area, allowing it to look at greater distances, and therefore further back in time, than Hubble.

Dark matter: the mysterious substance that makes up 85% of the universe that scientists can’t confirm

Dark matter is a hypothetical substance that would make up about 85% of the universe.

The enigmatic material is invisible because it does not reflect light and has never been directly observed by scientists.

Astronomers know it exists because of its gravitational effects on known matter.

The European Space Agency says, “Light a torch in a completely dark room, and you’ll only see what the torch shines on.”

Dark matter is a hypothetical substance that would make up about 27% of the universe.  We think it's the

Dark matter is a hypothetical substance that would make up about 27% of the universe. It is thought to be the gravitational “glue” that holds galaxies together (artist’s impression)

‘That doesn’t mean the room around you doesn’t exist.

“Similarly, we know dark matter exists, but we’ve never observed it directly.”

The material is thought to be the gravitational “glue” that holds galaxies together.

Calculations show that many galaxies would be torn apart instead of spinning if they weren’t held together by a large amount of dark matter.

Only five percent of the observable universe consists of known matter such as atoms and subatomic particles.

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