Recent observations from the James Webb Space Telescope (JWST) have identified six massive galaxies existing just 500-700 million years after the Big Bang, challenging the LambdaCDM model of cosmology. This model predicted that such large galaxies should not form until much later, around 770 million years post-Big Bang. The findings suggest that either the model's calculations or its underlying assumptions may be incorrect, as they conflict with established predictions. The paper published in Nature highlights the "impossible early galaxy problem," indicating that the formation of these galaxies occurs far earlier than previously thought. This discrepancy raises significant questions about our understanding of galaxy formation and the evolution of the universe.