1. Gravitational Capture: Dimorphos could have been formed through gravitational capture by the larger asteroid Didymos. As Didymos passed near another object in the Solar System, it may have captured Dimorphos, which became a satellite.
2. Fragmentation: Dimorphos might have originated as a fragment that broke off from a larger asteroid. This could have occurred due to impacts, rotational forces, or other processes that caused the parent asteroid to break apart.
3. Binary Asteroid: Dimorphos may be part of a binary asteroid system that formed together. In this scenario, Dimorphos and Didymos would have accreted from the same primordial material during the early formation stages of the Solar System.
4. Tidal Disruption: Dimorphos could have been a piece of material that was tidally disrupted by the gravitational forces of a passing celestial body. This tidal disruption scenario suggests that Dimorphos might be a fragment of a larger object that was torn apart during a close encounter.
Understanding Dimorphos's origins remains a complex question that requires further study. Ongoing observations and missions, such as the DART mission (Double Asteroid Redirection Test), which is scheduled for an impact on Didymos in September 2022, aim to provide more information and insights about the formation and characteristics of the Dimorphos-Didymos system.
