In 2024, scientists revealed that the tiniest galaxies, not the larger ones, were primarily responsible for reionizing the Universe, reshaping our understanding of cosmic history.
The research utilizing the James Webb Space Telescope (JWST) indicates that while large galaxies cannot be overlooked, they account for only about 20% of the starlight responsible for reionizing the Universe.
This finding challenges long-held assumptions about galaxy formation and evolution, highlighting that the earliest and smallest galaxies played a more significant role than previously thought.
As discoveries unfold, they remind us of the continual advancements in science, asserting that what once was known has often been mere beginning in our understanding.
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