The Rosetta spacecraft’s discoveries have reshaped our understanding of comets, revealing that they are not mere “dirty snowballs” but complex bodies with dust-to-gas ratios that vary significantly, leading to the new term "snowy dustballs" https://orbitaltoday.com/2024/03/03/the-rosetta-missions-space-discoveries-after-20-years/ Additionally, Rosetta’s findings suggest that comets are ancient remnants from the early solar system, potentially offering insights into the building blocks of planets.