Does James Webb flip the Big Bang? Discover giant galaxies that should not have existed when the universe was born

He detected broken space telescope James Webb, where he discovered six huge ones very early on galaxieseach containing roughly as many stars as our own. This discovery turns scientists’ understanding of evolution upside down of galaxies, as such large galaxies were not expected to be found at such a time early universewhen it was only 3% of its current age, about 500 to 700 million years after the initial Big Bang.

“Dawn” of the universe

Scientists from different countriesUSA, Australia, Denmark, Spain), led by Associate Professor of Astronomy and Astrophysics Joel Lisa of the University of Pennsylvania, and published the related publication in the journal “nature». As he said, “These objects are much more massive than anyone expected. However, we expected to find only small, young galaxies in that time period We discovered mature galaxies like our own at a time hitherto considered the dawn of the universe».

«This is madness. One would not expect the early universe to be able to self-organize so quickly. Erica Nelson, associate professor of astrophysics University of Colorado. “the our galaxy Creates one or two new stars each year. some of those galaxies They must have created hundreds of new stars every year over the history of the universe. If one of these galaxies is real, it will push us to the limits of our understanding of cosmology. Another possibility is that this stuff is a different type of foreign objectsuch as faint quasars (i.e. active galactic nuclei), which would be equally interesting.”

How did James Webb see galaxies?

the James Webbthe The most powerful telescope ever launched into space, equipped with Infrared instruments capable of detecting light from the oldest galaxies and their stars. Thus, Webb allows scientists to look back in time and space, at a distance of about 13.5 billion years, near the beginning of the universe as we know it.

«It’s our first look back so far, so it’s important to open our minds about what we’re actually seeing. Although the evidence suggests that these are likely galaxies, I think there is a reasonable possibility that at least a few of these objects are supermassive black holes. Regardless, the amount of mass we detected means that the stellar mass known for that period of our universe is up to 100 times greater than We used to believe. “This is an impressive change in the data,” Lega said.

The revelation that the formation of massive galaxies began very early in the history of the universe It upends what many of us have taken for granted as scientific factHe added, noting that these early galaxies are so big that they contradict almost all existing cosmology models (99%). This leads either to a reshaping of cosmic models, or to a revision of the prevailing scientific understanding of the creation of galaxies, namely that they began as small clouds of gas and dust, which gradually grew larger over time.

in each caseAccording to the researchers, it calls for a radical shift in the prevailing view of how the universe evolved. “We got a look at the very early universe for the first time and had no idea what we’d find. It turns out that we’ve found something so unexpected that it’s actually a problem for science. It casts doubt on the whole picture of the formation of the first galaxies. My first thought was that we made a mistake and that we would eventually figure it out and move on with our lives. The lead researcher noted that despite our many efforts, we did not find any error.

Scientists will now try to confirm their findings by taking pictures of the spectrum of early, massive galaxies, so they will have more data about their true distances, as well as their gases and other components. “Spectroscopy will tell us right away if these things are real or not. It will show us how big it is and how far it is.”Lega said.

Recently post It was the science team He declares that he was found with the help of James Webb four previous galaxieswhen the universe was only ancient 350 million years. But it is expected that these galaxies were smaller in size compared to them The first giants that have now been discovered.

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