Big Bang's firstborn?

(NLĐO) - The objects that have baffled scientists , recently detected by the James Webb telescope, may have existed since the birth of the universe.

Since the James Webb Space Telescope, the world's most powerful space telescope, became operational, data from it has revealed a number of objects that scientists considered "impossible" in the early universe.

Among them, the most prominent are the monstrous black holes with masses ranging from 100,000 to 1 billion Suns, observed during the cosmic dawn – the first billion years after the Big Bang – or just a few hundred million years after that.

It's a completely illogical phenomenon according to popular cosmological theories. But a new study from Italy has found a plausible answer.

An illustrative image of two of the most terrifying objects in the universe – two monstrous black holes – on the verge of merging. (Image: NASA/JPL-CALTECH)

According to Live Science, most scientists believe that black holes originate from massive stars.

Of these, the largest type of black hole – the supermassive black hole, also known as the monster black hole – achieves its immense size by billions of years of devouring matter and merging with other objects to grow.

But in the 1970s, the renowned theoretical physicist Stephen Hawking proposed that the universe may have spontaneously produced countless tiny black holes in the early moments of the Big Bang.

These black holes wouldn't come from the collapse of stars; instead, they would be born directly from matter and energy compressed to high densities amidst chaotic fluctuations in that early world.

Despite decades of research, there is still no evidence of this type of primordial black hole.

But the model developed by a research team led by Dr. Francesco Ziparo from the Scuola Normale Superiore di Pisa (Italy) indicates that the very improbable black holes photographed by James Webb are what Professor Hawking was referring to.

In this scenario, supermassive black holes—most likely including Sagittarius A* at the center of the Milky Way galaxy, which contains Earth—would not have developed after the first stars and galaxies formed.

Instead, these "primordial black hole seeds" existed from the very first moment of the universe, as part of what the Big Bang created in the beginning, 13.8 billion years ago.

They may be as small as asteroids, but they quickly gained most of their mass during the "Dark Ages" of the universe, even before the first stars and galaxies.

According to recent models, the Dark Age may have lasted approximately 400,000 years after the Big Bang and for about 50-100 million years.

So, when the first stars burn up, they will share the universe with monstrous black holes that have become enormous.

Source: https://nld.com.vn/vat-the-bat-kha-thi-138-ti-tuoi-con-dau-long-cua-big-bang-196241125093523867.htm