NASA: James Webb captures an incredible galaxy cluster

NASA: James Webb captures an incredible galaxy cluster (Image: NASA, ESA, CSA. Science: Jose Diego (Instituto de Física de Cantabria), Brenda Frye (University of Arizona), Patrick Kamieneski (Arizona State University), Tim Carleton (Arizona State University), and Rogier Windhorst (Arizona State University). Image processing: Alyssa Pagan (STScI), Jake Summers (Arizona State University), Jordan D’Silva (University of Western Australia), Anton Koekemoer (STScI), Aaron Robotham (University of Western Australia), and Rogier Windhorst (Arizona State University))

The NASA’s James Webb Space Telescope has released a new image of a galaxy cluster called ‘El Gordo’, considered a ‘cosmic teenager’, with hundreds of galaxies that existed 6.2 billion years after the Big Bang!

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Also known as the most massive galaxy cluster of its time, the James Webb managed to capture a special shot of ‘El Gordo’ using its infrared light, displaying a variety of unusual and distorted galaxies in the background.

Among them, NASA highlighted two galaxies, visible in the image, which draw attention due to their different colors and shapes.

Galaxy ‘El Anzuelo’

One of the most striking features of this galaxy is a bright red arc. According to scientists, ‘El Anzuelo’ has a diameter of 26,000 light-years, about a quarter of the size of our Milky Way.

After correcting some lens-induced distortions, researchers were also able to determine that the background galaxy has a disk-like shape, and its light took 10.6 billion years to reach Earth.

The prominent red color in ‘El Anzuelo’ is due to a combination of dust within the galaxy itself and cosmological redshift caused by its extreme distance.

Galaxy ‘La Flaca’

Another attention-grabbing galaxy is ‘La Flaca’, which features an elongated structure. Webb managed to capture the galaxy, which underwent gravitational lensing, and its light took nearly 11 billion years to reach Earth.

This galaxy appears to be a dwarf type and was discovered last year, but it was only now that the study describing it was accepted for publication in a scientific journal after undergoing peer review. If confirmed, ‘La Flaca’ could be the smallest galaxy ever seen outside the local universe.

NASA: James Webb captures an incredible galaxy cluster (Image: NASA, ESA, CSA. Science: Jose Diego (Instituto de Física de Cantabria), Brenda Frye (University of Arizona), Patrick Kamieneski (Arizona State University), Tim Carleton (Arizona State University), and Rogier Windhorst (Arizona State University). Image processing: Alyssa Pagan (STScI), Jake Summers (Arizona State University), Jordan D’Silva (University of Western Australia), Anton Koekemoer (STScI), Aaron Robotham (University of Western Australia), and Rogier Windhorst (Arizona State University))

This post was last modified on 2023-08-03 18:10

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