Dark matter makes up most of the universe’s mass, yet it remains invisible and undetectable by traditional instruments. Scientists infer its existence from its gravitational effects on galaxies, preventing them from flying apart. Unlike ordinary matter, dark matter does not emit, absorb, or reflect light, making it one of astrophysics’ greatest mysteries. Theories suggest it could be composed of weakly interacting massive particles (WIMPs) or axions. Experiments using underground detectors an...
