This discovery by the James Webb Telescope had already been observed by the Hubble Telescope. 
Joana Campos Meteorized Portugal 12/15/2023 2:00 p.m. 6 min
A new image released by the James Webb Space Telescope (JWST) shows a massive, dusty galaxy that produces hundreds of stars every year, This challenges previous assumptions about the rarity of such nurseries in the early universe. Artistic impressions show AzTECC71 as a ghostly creature, This suggests possible changes in scientists' understanding of the frequency of star formation.
AzTECC71: Galaxy of Dust Challenges the Early Universe
Astronomers in the COSMOS Web collaboration have identified AzTECC71, a galaxy of star-forming dust that develops many stars but whose visibility is obstructed by a veil of dust. It could have been formed almost a billion years after the Big Bang.
Although such galaxies were thought to be rare in the early universe, this discovery, along with more than a dozen other candidates, contradicts previous assumptions. This suggests they could be three to ten times more common than previously thought.
Described as a “real monster” by Jed McKinney, a postdoctoral fellow at the University of Texas at Austin, AzTECC71 forms hundreds of stars every year, offers potential insights into a hidden population of galaxies.
If this conclusion is confirmed, it could mean that the early universe contained much more dust than originally thought. The COSMOS Web project, co-led by Caitlin Casey, associate professor at UT, aims to map up to 1 million galaxies in a patch of sky the size of three full moons.
The James Webb Space Telescope has rediscovered AzTECC71, a galaxy captured by the Hubble spacecraft, and we found that it is occupied by many stars. Envuelta envuelta en velo de polvo, which prevents the light from being lost and it may be impossible to move.
1/Image conceptual. pic.twitter.com/12fLcZyiJc
— Rosario in Paris ᥫ᭡ (@chayito09) December 5, 2023
With the aim of studying the first structures of the universe, the team, consisting of more than 50 researchers, received 250 hours of observation time in the first year of JWST, The first batch of data will be received in December 2022, with additional data planned until January 2024.
Dusty star-forming galaxies such as AzTECC71 are difficult to observe in optical light due to the absorption and re-emission of dust at longer wavelengths. Before JWST, these galaxies were called “Hubble Dark galaxies.” McKinney points out the bias in understanding the evolutionary history of galaxies because previous observations were limited to uncovered, less dusty galaxies
AzTECC71 was originally discovered as a dust-emitting spot by the James Clerk Maxwell Telescope in Hawaii and was later confirmed with data from the ALMA Telescope in Chile. JWST observations at a wavelength of 4.44 micrometers revealed a faint galaxy in the same location, highlighting the new telescope's power to detect previously unseen cosmic objects.
JWST galactic revelations reveal cosmic dust
Dusty galaxies, which are often difficult to detect in optical observations due to the absorption and re-emission of dust, are now within reach thanks to JWST and its advanced infrared capabilities.
This powerful telescope can penetrate dense dust veils, allowing scientists to study the properties of these heavily obscured galaxies. both in the optical spectrum and in the infrared. JWST's sensitivity not only expands our view to the far corners of the universe, but also reveals the secrets hidden behind thick layers of cosmic dust.
While no telescope has previously been able to see beyond cosmic dust, the JWST is capable of making observations in both the optical and infrared spectrum.
The research team, led by UT Austin astronomers McKinney and Casey, aims to explore and understand the nature of these dusty galaxies. With JWST's ability to penetrate dust, The team can delve deeper into the details of the formation and evolution of these galaxies. Providing valuable information about a previously hidden population of cosmic objects.
This represents a significant advance in our observational capabilities, This allows us to unlock the secrets of galaxies that were once shrouded in cosmic dust. Expanding our understanding of the beginning of the universe.
Item reference:
McKinney J, Manning S, Cooper O, et al. A faint near-infrared, far-infrared glowing dust galaxy at z ∼ 5 in COSMOS-Web. The Astrophysical Journal (2023).