The space telescope James Webb has identified a galaxy that is located just 290 million years after the Big Bangthe oldest discovery observed to date. Called JADES-GS-z14-0this galaxy provides unprecedented insight into the formation of the earliest structures in the universe.
First observed in January 2024 According to the telescope’s Near Infrared Spectrograph (NIRSpec), JADES-GS-z14-0 has a diameter greater than 1,600 light-years.
The data reveal that the light from this galaxy comes mainly from young stars, ruling out the predominant influence of supermassive black holes in its formation.
This discovery offers a unique window into the Cosmic Dawn period, when the fog of neutral hydrogen began to dissipate, allowing the first galaxies and stars to form.
The James Webb Telescope, designed to detect infrared radiation, has demonstrated its ability to penetrate the dense fog of the early universe, revealing details that other instruments cannot.
The study, carried out under the JWST Advanced Deep Extragalactic Survey (JADES), has revealed galaxies that exceed expectations in size and complexity, including the early presence of elements such as dust and oxygen in JADES-GS-z14-0.
This discovery challenges existing models of galaxy formation in the early Universe, suggesting the existence of previous generations of massive stars.
As astronomers continue to analyze this data, new ancient galaxies are likely to emerge, expanding our understanding of cosmic development and the evolution of the early universe.
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