Astronomers have confirmed the existence of the faintest galaxy currently known in the early Universe, JD1, using the James Webb Space Telescope and gravitational lensing. The galaxy is seen as it was when the Universe was only 480 million years old. Studying such faint galaxies helps scientists understand the epoch of reionization, a crucial period in the Universe’s evolution when the first stars and galaxies formed and burned away the hydrogen fog, leading to the transparent Universe we see today.
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