Consider the following statements regarding Saturn and its rings:

1. Data from NASA's Cassini spacecraft revealed that Saturn's rings are made of billions of chunks of ice and rock.

2. Every 13 to 15 years, the edge of Saturn's rings aligns directly with Earth.

3. Saturn's rings are constantly being pulled towards the planet due to its gravity and magnetic field, and it is expected to completely lose its rings eventually.

Which of the statements given above is/are correct?