Revealing 3 objects born from the "chaos zone" after the Big Bang

(NLDO) - The James Webb super telescope has for the first time revealed "time-traveling" images of three cosmic objects dating back to 13.3-13.4 billion years.

According to Science Alert , the strange objects recorded by the world's most powerful space telescope, James Webb, are things that were formed from the "era of chaos" of the period called "Cosmic Dawn".

Three objects forming from the "chaos zone", three of the oldest galaxies in the universe, are depicted for clarity based on James Webb data - Photo: NASA/ESA/CSA/Joseph Olmsted/STScI

The Cosmic Dawn refers to the period of 1 million years since the Big Bang event that created the universe (about 13.8 billion years ago), which is still very much not understood.

During this period, especially during the first "chaotic epoch", a neutral hydrogen fog filled the universe and prevented light from traveling freely, so even if light from that period survived somewhere, it would be very difficult for human means to find it.

But a team of scientists led by astrophysicist Kasper Elm Heintz from the Niels Bohr Institute (Denmark) has developed a new method that takes advantage of this neutral hydrogen.

In a study just published in the journal Science, the authors said they used James Webb's infrared "eye" to capture signals emitted from neutral hydrogen surrounding ancient galaxies.

This gas can absorb and reflect light from objects that they are trying to hide from human eyes.

Light from distant objects has a delay corresponding to the distance it takes to reach Earth, so James Webb's ability to see billions of light years away also helps it capture a "time-traveling" image of that object.

It is an intact image of billions of years ago, when the object was still in its pristine state and had not been pushed too far away from Earth by the universe during its expansion.

In this case, Dr. Heintz's team found images of three amazing objects, three galaxies that existed within 400-600 million years after the Big Bang.

They probably began forming long before that, and in the James Webb image, the gas reservoirs are actively being pushed into the galaxy, showing that they are actively growing and gradually perfecting their shape.

These gas reservoirs make up a large proportion of each galaxy, suggesting that they are actively forming galactic matter. The abundance of gas also suggests that at the time of observation the galaxies had not yet formed most of their stars.

“In the few hundred million years after the Big Bang, the first stars formed, before stars and gas began to coalesce into galaxies,” explains cosmologist and astrophysicist Darach Watson of the Niels Bohr Institute.

Meanwhile, co-author Gabriel Brammer raises one of humanity's most fundamental questions: "Where do we come from?".

He believes this new discovery and similar discoveries in the future will answer that.

The original version of the Milky Way, the galaxy that contains Earth, is also believed to have originated very early in the "era of chaos", before swallowing more than 20 other galaxies and becoming the giant monster it is today.

Source: https://nld.com.vn/lo-dien-3-vat-the-ra-doi-tu-vung-hon-mang-hau-big-bang-19624052808233306.htm