Dark matter's hidden depths.

This article explores the complexities of dark matter, a mysterious substance that is thought to make up a significant portion of the universe. Traditionally, dark matter has been believed to be a single type of slow-moving particle that does not interact with itself. However, recent observations of galactic anomalies have led scientists to consider alternative theories, such as the existence of sub-atomic particles that interact with each other or families of dark particles that form dark atoms, stars, and galaxies. Researchers are using computer simulations and observations to narrow down the possibilities and gain a better understanding of the true nature of dark matter. [Extracted from the article]