James Webb Space Telescope spots the 2 earliest galaxies ever seen (image)

by | May 30, 2024 | Science

The James Webb Space Telescope (JWST) has discovered not one but two of the earliest and most distant galaxies ever seen, continuing to break the records it previously set.The furthest galaxy, JADES-GS-z14-0, is seen as it was around 300 million years after the Big Bang, existing at least 100 million years earlier than the previous record holder. That means that the light the JWST saw from this primordial galaxy has been traveling for 13.5 billion years on its way to reach us. JADES-GS-z14-0 isn’t alone, either. It was discovered along with another galaxy, JADES-GS-z14-1, that is almost as far away and takes second place in the ranking of the earliest galaxies ever seen by humanity.Related: James Webb Space Telescope spots 3 of our universe’s earliest galaxiesThe announcement of the discoveries, made in Oct. 2023 and Jan. 2024, are the latest developments in the ongoing investigation of cosmic dawn that the $10 billion telescope has facilitated as part of the JWST Advanced Deep Extragalactic Survey (JADES) program. JADES aims to provide vital insights into the ways in which the stars, gas, and black holes were evolving in primordial galaxies when the 13.8 billion-year-old universe was very young.”These galaxies join a small but growing population of galaxies from the first half billion years of cosmic history where we can really probe the stellar populations and the distinctive patterns of chemical elements within them,” team member and Kavli Institute for Cosmology scientist Francesco D’Eugenio said in a statement. The galaxy JADES-GS-z14-0 as seen by the James Webb Space Telescope is the most distant and earliest galaxy ever spotted existing just 300 million yearsJADES-GS-z14-0 isn’t just remarkable for how distant it is from Earth and how early it existed in the cosmos, though. With a width of around 1,600 light-years across, this “cosmic dawn” galaxy is also remarkable for how big and bright it is.”The size of the galaxy clearly proves that most of the light is being produced by large numbers of young stars, rather than material falling onto a supermassive black hole in the galaxy’s center, which would [make it] appear much smaller, “JADES team leader Daniel Eisenstein from the Harvard & Smithsonian’s Center for Astrophysics (CfA) said in a separate statement. The extreme brightness of JADES-GS-z14-0 and the fact this luminosity is powered by young stars means this galaxy represents the most striking evidence for the rapid formation of large, massive galaxies in the early universe found thus far.JADES team member and University of California-Santa Cruz researcher Ben Johnson ad …

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[mwai_chat context=”Let’s have a discussion about this article:nnThe James Webb Space Telescope (JWST) has discovered not one but two of the earliest and most distant galaxies ever seen, continuing to break the records it previously set.The furthest galaxy, JADES-GS-z14-0, is seen as it was around 300 million years after the Big Bang, existing at least 100 million years earlier than the previous record holder. That means that the light the JWST saw from this primordial galaxy has been traveling for 13.5 billion years on its way to reach us. JADES-GS-z14-0 isn’t alone, either. It was discovered along with another galaxy, JADES-GS-z14-1, that is almost as far away and takes second place in the ranking of the earliest galaxies ever seen by humanity.Related: James Webb Space Telescope spots 3 of our universe’s earliest galaxiesThe announcement of the discoveries, made in Oct. 2023 and Jan. 2024, are the latest developments in the ongoing investigation of cosmic dawn that the $10 billion telescope has facilitated as part of the JWST Advanced Deep Extragalactic Survey (JADES) program. JADES aims to provide vital insights into the ways in which the stars, gas, and black holes were evolving in primordial galaxies when the 13.8 billion-year-old universe was very young.”These galaxies join a small but growing population of galaxies from the first half billion years of cosmic history where we can really probe the stellar populations and the distinctive patterns of chemical elements within them,” team member and Kavli Institute for Cosmology scientist Francesco D’Eugenio said in a statement. The galaxy JADES-GS-z14-0 as seen by the James Webb Space Telescope is the most distant and earliest galaxy ever spotted existing just 300 million yearsJADES-GS-z14-0 isn’t just remarkable for how distant it is from Earth and how early it existed in the cosmos, though. With a width of around 1,600 light-years across, this “cosmic dawn” galaxy is also remarkable for how big and bright it is.”The size of the galaxy clearly proves that most of the light is being produced by large numbers of young stars, rather than material falling onto a supermassive black hole in the galaxy’s center, which would [make it] appear much smaller, “JADES team leader Daniel Eisenstein from the Harvard & Smithsonian’s Center for Astrophysics (CfA) said in a separate statement. The extreme brightness of JADES-GS-z14-0 and the fact this luminosity is powered by young stars means this galaxy represents the most striking evidence for the rapid formation of large, massive galaxies in the early universe found thus far.JADES team member and University of California-Santa Cruz researcher Ben Johnson ad …nnDiscussion:nn” ai_name=”RocketNews AI: ” start_sentence=”Can I tell you more about this article?” text_input_placeholder=”Type ‘Yes'”]
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