How to get another three stars in angry birds space world 1 level 18
This level is kinda hard to figure out at first but once I give a pointer I am sure you can get it done in a jiffy. Aim the first and only bird you need as seen in the screenshot. The bird will have to nudge the first stone in its path before continuing towards the next stone. As it reaches it press down on your screen so it blows up and sends a lot of the stones towards the gravity field of the planet below. Once caught by the planets gravitational pull the rest will take care of its own. Just sit back and enjoy the show. Oh, and your three new stars.
A video of the seance to be seen below if you need some more pointers