Summary:
- Saturn's largest moon, Titan, is believed to be the product of a merger between two smaller moons that collided in the past.
- This theory is based on observations of Titan's unusual shape and composition, which suggest it was formed through the combination of two separate celestial bodies.
- The merger of these two moons likely occurred billions of years ago and helped shape the unique characteristics of Titan, which is the only moon in our solar system known to have a dense atmosphere.