NASA’s James Webb Space Telescope has discovered images of what are believed to be six giant ancient galaxies that are “shaking the universe.”
Their existence could overturn current cosmological theories. By examining images obtained from the James Webb Telescope, Dr. Erica Nelson of the University of Colorado at Boulder and a co-author discovered a series of “fuzzy dots” Unusually bright red. These red dots represent these The galaxy is estimated to be around 13.5 billion years old.500 to 700 million years after the Big Bang.
Images of six giant ancient galaxies captured by the James Webb Telescope.
Images of six giant ancient galaxies recorded by the James Webb telescope. (Photo: NASA/Reuters).
The calculations show These galaxies contain tens to hundreds of billions of stars with the mass of the Sun.making them about the same size as the Milky Way, according to a new study published February 22 in the journal Nature.
The newly discovered galaxies are so large that they contradict 99% of models representing the earliest galaxies in the universe.
This could lead scientists to rethink how galaxies form and evolve. Current theory holds that galaxies began as small clouds and stardust that grew over time.
The James Webb Telescope observes the universe using infrared light invisible to the human eye. It is also capable of detecting the faint light of ancient stars and galaxies. James Webb can essentially go back in time to about 13.5 billion years ago.
It’s just happening “overturning what many considered mature scientific theories. »
“We informally call these objects ‘universe disruptors'”said Joel Leja, assistant professor of astronomy and astrophysics at Penn State University and co-author of the study. “This calls into question the entire formation of early galaxies.”
The new discoveries are not the oldest galaxies James Webb has ever observed. Last year, scientists discovered four galaxies dating from around 350 million years after the Big Bang, but these galaxies are much smaller.
Dr Emma Chapman, an astrophysicist at the University of Nottingham who was not involved in the latest research, said further observations were needed before current models of the universe were rejected.
The research team plans to collect spectroscopic images, a method that could provide more precise age information and enable better mass estimates.
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NASA’s James Webb Space Telescope has discovered images of what are believed to be six giant ancient galaxies that are “shattering the universe.”