Recent research suggests that the organic molecules found on Ceres were likely delivered by asteroids from the outer asteroid belt. These asteroids, rich in organic compounds, collided with Ceres at relatively low speeds, allowing the organic material to survive the impact. This theory is supported by the distribution of organic material on Ceres' surface and the lack of cryovolcanic activity in areas where organics are found.
While the exact origin of these organic molecules is still under investigation, the delivery by asteroids appears to be the most plausible explanation based on current evidence. This discovery highlights the potential for organic material to be transported throughout the solar system, potentially playing a role in the development of life elsewhere.