Dark Matter and Its Role in theStructure and Evolution of the Universe

Author(s)	Kheemraj Garg
Country	India
Abstract	Dark Matter is one of the most mysterious components of the universe. Although it cannotbe observed directly,astronomical observations strongly suggest that it exists and dominates the mass of galaxiesand galaxy clusters.Dark matter does not emit, absorb, or reflect light, making it invisible to telescopes.However, its gravitationaleffects influence the motion of stars, galaxies, and light traveling across the universe.Observational evidencefrom galaxy rotation curves, gravitational lensing, cosmic microwave background radiation,and large-scalestructure formation all indicate that dark matter is a major component of the cosmos.Modern cosmology suggeststhat approximately 27 percent of the universe is composed of dark matter, while ordinarymatter accounts foronly about 5 percent. Understanding dark matter is essential for explaining galaxyformation, cosmic evolution,and the structure of the universe. This research paper reviews the historical discovery,observational evidence,theoretical models, candidate particles, detection methods, and future directions in darkmatter research.
Field	Physics > Astronomy
Published In	Volume 8, Issue 2, March-April 2026
Published On	2026-03-25

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