Starting in July 2022, the scientific operations of the James Webb Telescope have been successful. After providing exclusive images of star formations, death and a fragment of the sky filled with galaxies old ones, he recorded a new milestone.
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oldest galaxy in the universe
There is no doubt that the universe we inhabit is thousands of years old. However, the Webb Telescope has detected galaxies from when the universe was 300 million years old, the infancy of cosmic elements.
The researchers are now looking at candidate galaxies for the title of oldest in the universe, GLASS-z11 and GLASS-z13. According to them, the light from GLASS-z13 takes approximately 13.4 billion light years to reach the mirrors of the spacecraft, positioned at a distance of 15 million km from Earth.
Mystery in the world of astronomy
Much is already known about the formation of the universe. However, scientists are looking for the solution to certain questions, such as answering exactly when and under what circumstances the first galaxies formed.
Astronomers find it mind-boggling how light from the galaxy took 13 billion years to reach the telescope, while now located at a distance of more than 33 billion light years. And it continues to move away, because the universe expands at an accelerated rate.
So far, astronomers have confirmed the existence of only one galaxy, GNz11. It formed in the first few hundred million years after the Big Bang, responsible for bringing life to the universe.
The galaxy GLASS-z11, according to Rohan Naidu, an astronomer at Harvard, presents a light profile that extends so exponential, with contours consistent with a disk galaxy, that image known to all of us when we think about the subject.
The numbers 11 and 13 refer to the red shift of the galaxy, which relates to how much light from these galaxies had to stretch due to the expansion of the universe. Thus, the higher number indicates that the galaxy is farther from Earth. After peer review of the research, it will be a groundbreaking finding if it is confirmed. To do so, a tool from the Webb telescope will be used to detect infrared light close to the galaxy.
