Webb's first photo was re-examined:

Webb's first photo was re-examined:

Early analysis of the first image of the deep field of the James Web, which depicts some of the earliest galaxies in the universe, is published in The Astrophic Journal Letters.

Webb's mission

One of their main objectives of the James Webb telescope is to find the first stars and galaxies in the universe, and to understand the complexity of life in it by analysing the chemical elements and building blocks of life. A re-examination of the first deep field of Webba showed what the earliest phase of star formation looks like, confirming the incredible power of JWST, scientists write.

For example, using Webb, researchers from the Canadian CANUCS project have identified the most distant globular clusters ever discovered, and these dense groups of millions of stars can be relics that contain the earliest and oldest stars in the universe.

Bangla Space Fire

Scientists paid particular attention to the Sparkler galaxy, which is nine billion light-years away from the Earth, as it was called because of its compact objects surrounding it in the form of small yellow-red dots, which were called "screams".

Scientists have suggested that these "screams" are either young clusters that actively form stars that are born three billion years after the Big Bang, or old balloon clusters that are clusters of stars that provide clues about the earliest stages of star formation.

By analysing 12 such compact objects, astronomers found that five of them were not only balloon clusters, but also one of the oldest known clusters.

Why hasn't she been found before?

So far, astronomers have not been able to observe Sparkler's surrounding galaxy with compact objects using the Hubble Space Telescope; everything has changed because of the increased resolution and sensitivity of JWST. In addition, scientists have helped in gravitational lensing, thanks to it, the image has been increased by a factor of 100.

The researchers have now combined new data from Webb's near infrared camera with Hubble's archival data. NIRCam's unique feature is that it "sees" even weak objects, recording long and red waves of an object that can even be perceived by the human eye and even Hubble. The galaxy concentration line and the high resolution of JWST have made it possible to observe compact objects that used to be hidden from astronomers.

In turn, Canada's near-infrared imagery instrument at the Webb telescope has confirmed that "shields" are old balloons, because researchers have not observed oxygen emissary lines that release young clusters that are active in forming stars, and NIRISS has also helped solve the geometry of three-line images of the Sparkler galaxy.

Astronomers know that the globes can be very old, but their age is incredibly difficult to measure, but it helps to determine the age of the first stars in distant galaxies, and it turns out that recently identified clusters appeared almost at the time when the formation of the stars was first possible — when the universe was 4.5 billion years old.

What's next?

Sparkler's study highlights the great power of Webb, and the authors of the study have noted that they are excited about new discoveries, and this will happen very soon — next month, the space observatory will draw attention to the accumulations of CANUCS galaxies.

James Webb will be monitoring the CANUCS fields from October 2022, using the optics to study five massive galaxies, which will make it possible to learn more about the history of star formation.