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a completely different structure and development. Dark matter, which accounts for about 85% of the matter in the universe, played a crucial role in the formation of galaxies and other large-scale structures. It is called "dark" because it does not interact with light or other forms of electromagnetic radiation, making it invisible to our current observational methods.
The gravitational pull of dark matter helped in attracting ordinary matter, allowing gas clouds to collapse and form galaxies. Without dark matter, the gravitational forces would have been insufficient to explain the observed cohesive structures in the universe.
Additionally, the clumps of dark matter acted as a scaffolding for the formation of galaxies and galaxy clusters. Over time, ordinary matter accumulated within the gravitational wells created by dark matter, leading to the formation of stars, planets, and other celestial objects.
Therefore, the presence of dark matter provides a plausible explanation for the large-scale structure of the early universe. Without it, the universe would lack the necessary gravitational influence to form the diverse and intricate structures observed today.
Dark matter is a hypothetical form of matter that does not interact with light or other forms of electromagnetic radiation. While it cannot be directly observed or detected through any known means, its existence is inferred through its gravitational effects on visible matter and the structure of the universe.
One of the main reasons dark matter is believed to be present in the early universe is because it helps explain the formation and evolution of large-scale structures, such as galaxies and galaxy clusters. Its gravitational attraction provides the additional "clumping" force necessary for matter to come together and form these structures.
Without dark matter, the universe would have evolved differently. The absence of its gravitational influence would have led to less clumping and slower formation of structures, resulting in a very different distribution of matter throughout the cosmos. The structures we observe today, like galaxies and galaxy clusters, would not have formed as efficiently or in the same patterns. Therefore, dark matter plays a crucial role in shaping the large-scale structure of the universe as we know it.