NASA's James Webb telescope has made a groundbreaking discovery by detecting an enormous galaxy situated an astounding distance of 25 million light-years from Earth
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Loading... - Lori Adams
- 23 May 2023
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NASA's remarkable James Webb Space Telescope (JWST) has once again achieved a momentous breakthrough, uncovering a colossal galaxy situated an astonishing 25 million light-years away.
Dubbed GS-9209, this galaxy, born approximately 600 to 800 million years after the cataclysmic event known as the Big Bang, is now hailed as the earliest of its kind ever discovered. The profound revelations about GS-9209 were brought to light by a team of accomplished researchers from the University of Edinburgh, who made use of the world's most exorbitant telescope to conduct their groundbreaking study.
Leading the investigation was Dr. Adam Carnall, an esteemed scholar from the School of Physics and Astronomy at the University of Edinburgh. Dr. Carnall expressed his enthusiasm, stating, "The James Webb Space Telescope has already surpassed our expectations by demonstrating the rapid growth of galaxies during the initial billion years of cosmic history. Our research delves deeply into the unique attributes of these early galaxies, meticulously documenting the captivating journey of GS-9209, which remarkably managed to produce a staggering number of stars, equivalent to those found in our own Milky Way, within a mere 800 million years following the Big Bang. Additionally, the existence of an immensely massive black hole within this galaxy took us by surprise, lending substantial support to the notion that these black holes played a pivotal role in suppressing star formation in early galaxies."
Despite its relatively smaller size compared to the grandeur of the Milky Way, GS-9209 boasts a comparable quantity of stars. The combined mass of these stars, as detailed in the study published in the esteemed journal Nature, totals a staggering 40 billion times that of our sun. These celestial bodies underwent a rapid formation process before star production came to a halt in GS-9209.
Intriguingly, GS-9209 represents the earliest known instance of a quiescent galaxy, a galaxy that ceases to create new stars. When observed 1.25 billion years after the Big Bang, no new stars had emerged within GS-9209 for approximately half a billion years.
Furthermore, the study suggests the presence of a supermassive black hole at the core of GS-9209, surpassing astronomers' expectations for a galaxy housing a star population of this magnitude. This astonishing discovery may elucidate the reason behind the cessation of star formation in GS-9209.
As supermassive black holes expand, they emit copious amounts of high-energy radiation, capable of heating up and expelling gas from galaxies. According to the researchers, this phenomenon potentially impeded star formation in GS-9209 since stars materialize from the gravitational collapse of gas and dust clouds within galaxies.
The credit for the initial detection of GS-9209 in 2004 goes to Karina Caputi, a Ph.D. student at the University of Edinburgh at the time, under the supervision of Professors Jim Dunlop and Ross McLure from the School of Physics and Astronomy.
The awe-inspiring James Webb telescope, with a staggering cost of $9 billion, embarked on its space journey on Christmas Day of 2021. Its anticipated impact on the field of astronomy is monumental, as it allows scientists to delve deeper into the cosmos with unparalleled precision, unravelling the mysteries of the universe's inception.
