Unveiling the Enigma: Dark Matter | Wiki Coffee

Dark matter, a phenomenon first proposed by Swiss astrophysicist Fritz Zwicky in 1933, refers to the unidentified form of matter that does not emit, absorb, or reflect any electromagnetic radiation, making it invisible to our telescopes. Despite its elusive nature, dark matter's presence can be inferred through its gravitational effects on visible matter, radiation, and the large-scale structure of the universe. It is estimated that dark matter constitutes approximately 85% of the universe's total matter, with the remaining 15% being ordinary matter. The existence of dark matter has been supported by numerous observations, including the rotation curves of galaxies, the distribution of galaxy clusters, and the large-scale structure of the universe. However, the exact composition of dark matter remains unknown, with scientists proposing various theories, such as WIMPs (Weakly Interacting Massive Particles), axions, and sterile neutrinos. As research continues to unravel the mysteries of dark matter, scientists like Lisa Randall and Brian Greene are at the forefront, exploring new detection methods and theoretical frameworks to understand this enigmatic component of our universe.