discovered by a team of scientists Six early “massive” galaxies who question their prior knowledge about their training and about The origin of the universeAccording to a study published Wednesday, February 22 in the journal nature.
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The research, led by the University of Pennsylvania (USA), highlights that “these things” are “much bigger” than anyone would expect. Found between 500 and 700 million years after the Big Bang.
“We only expected to find young, young galaxies in that time period, but we’ve detected mature galaxies like our own in what was previously understood as the beginning of the universe,” explained Joel Lega, one of the authors. statement.
Experts analyzed data provided by the James Webb Space Telescope to focus on the past, He recalls Lyga with a tool that allows them to travel back up to 13,500 million years in time.
“This is the first time we’ve looked this far, so it’s important to open our minds about what we’re seeing,” said the astronomer.
For this reason, he warns that although the information indicates that the above objects “may be galaxies,” there is a “real possibility” that “a few” of these are “supermassive black holes.”
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“However, the amount of mass we detected means that the known mass of stars in this period of the universe is up to 100 times greater than previously thought,” Lega said.
“It seems that we have discovered something so unexpected that it creates problems for science.”
continues to form massive galaxies shortly after the Big Bang, “turning upside down” previous concepts, such as those originally “small clouds of stars and dust” that “gradually grew over time”.
“It seems that we have discovered something so unexpected that it really creates problems for science,” said Lega, whose international team includes experts from the University of Valencia in Spain.
In order to confirm these findings, the researchers plan to take spectroscopic images of these large galaxies to obtain information about their “real distances” and the “gases and other elements” that make up them. “The spectrum will tell us right away if these objects are real. It will tell us how big they are and how far away they are,” Lega concluded.