How to get three stars in angry birds space fry me to the moon 3-7
If you have given this level a few tries you may have found that the outer layer of the steel construction on the planets surface is pretty hard to penetrate. This is why you need the stone orbiting the planet to make at least a tiny hole in that outer layer. Shoot the first bird into the stone, and press down on your screen to get the most of it. If you haven’t punctured the surface reload the level and give it another go. As soon as you get it right use the second bird to get in deep in the steel construction. You may need to use a third bird but you can still get three stars if you get enough points.
For a detailed video walkthrough of level 3-7 angry birds space fry me to the moon check this out :