Astronomers believe that the universe’s first galaxies appeared in giant halos of dark matter. Dark matter, which is assumed to make up 27 percent of the universe in the standard model, is a type of matter that cannot be observed because it does not interact with light.
It is assumed that halos of dark matter trap gas and turn it into structures with gravitational links between them.
However, the latest data from JWST, which was developed by NASA together with the European and Canadian space agencies, calls into question this theory of galaxy formation.
It is assumed to have OCCURRED 13.8 billion years ago
The team that carried out the study, published yesterday (November 13) in the leading peer-reviewed journal Nature, noted that the 36 galaxies they studied spanned the existing models.
On the other hand, JWST discovered three galaxies almost as big as the Milky Way within a billion years after the Big Bang, which is thought to have happened about 13.8 billion years ago.
Scientists call these large galaxies “Red Monsters” because they turn red in images due to their high level of dust.
Scientists, who believed that galaxies developed in a slow process and that it would take billions of years for them to grow as big as the Milky Way, were shocked by these ideas.
It’s like “finding a 100-pound baby,” says Ivo Labbé of Swinburne University of Technology in Australia. Labbé, one of the study’s authors, believes that the Red Monsters will raise new questions about galaxy formation theories:
JAMES WAEBB SPACE TELESCOPE DOES ONLY RESULTS!
Current models do not explain how star formation could occur with such high efficiency in the very early universe.
JWST, which has been expanding astronomers’ view of the early years of the universe since it began operations in December 2021, is also raising more and more questions.
Their ideas that this period of the universe was more advanced than they thought raise questions about the existing models.
One of the latest findings that suggests galaxy formation theories may need to be reexamined came from the Atacama Large Millimeter/Submillimeter Array (ALMA) observatory in Chile.
Scientists discovered an unexpectedly orderly galaxy when the universe was only 700 million years old.
With the help of JWST and ALMA, astronomers hope to unravel the mysteries of this period. “As we study these galaxies more deeply, they will provide new insights into the conditions that shaped the earliest universe,” said Mengyuan Xiao, lead author of the new study.
Red Monsters are just the beginning of a new era in our study of the early universe.
2024-11-15 08:59:00
#Happened #billion #years #Red #Monsters #surprised #scientists
