Posted by NewAdmin on 2025-02-13 08:58:16 |
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The James Webb Space Telescope (JWST) has recently made groundbreaking discoveries that challenge long-held theories about galaxy formation. One of the most surprising findings is that some of the earliest galaxies in the universe are larger and brighter than expected, contradicting the Cold Dark Matter (λ-CDM) theory, which suggests that galaxies gradually form from smaller building blocks with the help of dark matter.
Instead, these observations support an alternative idea known as Modified Newtonian Dynamics (MOND), which proposes that galaxies formed more rapidly due to gravitational collapse, without the need for dark matter. This challenges the conventional understanding of how galaxies evolved over time. Scientists had anticipated that JWST would find small, faint galaxies from the early universe, but the telescope instead revealed that massive galaxies existed much earlier than expected.
These discoveries are pushing astronomers to reconsider fundamental concepts in cosmology and look for new explanations of galaxy formation. JWST’s ability to observe distant cosmic structures is providing a clearer picture of the early universe, leading to ongoing debates about the role of dark matter and alternative gravitational theories