“Before the Webb telescope switched on, just a year ago, we could not even dream of confirming such a faint galaxy.”
Scientists examined the early years of the universe using cosmic light that has traveled for millions of years to reach us. The first billion years of the universe, in particular, have instilled curiosity among astronomers.– about 13.8 billion years ago. It was long after this that the universe began to expand and gradually cooled, allowing hydrogen atoms to form.
This marked the Epoch of Reionization, which led to the formation of the first stars and galaxies. And one crucial goal in astronomy has been to understand the first generation of galaxies, which began to populate this era of the universe’s early history. Roberts-Borsani further explained: “Ultra-faint galaxies such as JD1, on the other hand, are far more numerous, which is why we believe they are more representative of the galaxies that conducted the reionization process, allowing ultraviolet light to travel unimpeded through space and time.”, the team was able to locate JD1. It is located behind Abell 2744, a bright, large cluster of nearby galaxies.due to gravitational lensing.
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