Stardust: S2

This puzzle I created for the practice of Oğuz Atay Puzzle Contest-6. This puzzle type is going to appear in today's OAPC-6 puzzle championship.

Stardust Puzzle Instructions

Locate some squares (each having the size 3x3) in the grid so that all stars are surrounded by squares. Some cells of the squares can be outside the grid, but the central cell should always be inside the grid. Squares cannot overlap each other, but they can share edges. There should not remain any star which is not surrounded by a square. Central cells of squares cannot overlap that stars.

Stardust-S2