The James Webb Telescope displays objects from the first moments of the universe’s life

In the dance of dark matter, NASA’s Deep Space Observatory, Great Space Telescope James Webb It caught a unique light from the early universe.

The Great Mirror of the Web Use the gravity of a galaxy cluster to observe a known galaxy It was previously spotted by the Hubble Space Telescope, but it has found something new: new research published yesterday indicates just that. Webb may see two galaxies, not onethanks to a sharper display.

We are actively discussing Whether it is two galaxies or two groups of stars within a galaxy. We don’t know but these are the questions the Web was designed to help us answer.” Release NASA astronomer from the Space Telescope Science Institute DankoWebb’s near-infrared camera hardware scientist.

NASA’s James Webb Space Telescope was specifically designed for Detecting the dim infrared light of very distant galaxies Giving astronomers a glimpse into the beginnings of the universe. The nature of galaxies during this early period of our universe is not well known or understood. But with the help of the gravitational reflection of the foreground galaxy cluster, the faint background galaxies can be zoomed in and also appear several times in different parts of the image.

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Hubble saw things found 10 years ago and calls MACS0647-JD, as a “pale red dot” that formed just 400 million years after the Big Bang that started the universe, according to Koo. While Webb revealed that one object was actually two, the nature of what the new telescope sees remains a mystery. The Webb team is committed to Science in spreading progress As such, this finding has not yet been reviewed and is still under early discussion. If Webb sees two galaxies, there’s an even more interesting possibility: Hungarian fusion It could be in progress in the early universe.

“If it’s the farthest fusion, I’d be really happy,” he said. Tiger Yu Yang Hsiao, a graduate student at Johns Hopkins University, in the same statement. But whether Webb is looking at two star clusters or two galaxies, there are distinct differences between them: one group of objects is a bit bluer with lots of stars, and another is a bit redder with lots of dust.

Webb’s use of gravitational lenses is not new to astronomyBut exploiting the ability of massive objects to bend light will bring new insights with the telescope’s delicate instruments. Webb has been optimized to observe the early universe, which is rapidly moving away from us at infrared wavelengths.

The projected twenty years of Webb’s space observations will greatly expand our catalog of early galaxies. Rebecca Larson, a National Science Foundation fellow and Ph.D., said it goes from “dozens” of things to many other things. Graduate student at the University of Texas at Austin.

“Studying them can help us understand how they evolved into galaxies like the ones we live in today, as well as how the universe has evolved over time,” Larson said in the same statement. . added Looking forward to Webb’s ability to create “deep fields” from a single point in the sky, As Hubble has done several times, this will discover more things in the early universe.

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“MACS0647-JD discovered this galaxy Since 10 years With the Hubble Space Telescope. At the time, I’d never worked on highly redshifted galaxies, and then I found these galaxies that are probably farthest at redshift 11, about 97 percent of the way back to the Big Bang. With Hubble, this was just a pale red dot. We can say that it was really small, just a small galaxy in the first 400 million years of the universe. Now we’re looking with Webb and we can solve two objects! We are actively discussing whether two galaxies or two groups of stars are within a single galaxy. We don’t know, but these are the questions the Web has designed to help us answer.”

Larson concluded:until this moment, We could not study galaxies in the early universe In great detail. We only had dozens of them before Webb. I think my favorite part is that as many new photos of Webb as we have, if you look in the background, there are all these little dots, and they’re all galaxies! everyone of them. It’s amazing how much information we receive that we haven’t been able to see before. This is not a deep field. This is not a long exposure. We haven’t really tried to use this telescope to observe a point for a long time. This is only the beginning!”

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