Angry Birds Space Beak Impact bonus level F-9 is unlocked by feathering all levels of Beak Impact Part 1. The strategy is to toss the first can at the base of the bottom left tower. That should clear half the planet. Then send another can at the base of the top right tower.
If you have an alternate strategy please feel free to leave a detailed comment below.
1. First Sardine Can through the space in the rocks above the one used in the video and it is a direct shot to the white triangle. Activate prior to impact because it clears a bit more stones on the asteroids lower section.
2. Second Sardine Can through one of the openings in the stones around the bottom so it goes to the right side. Obtained 100% near the right south white triangle and structure. Also the SC went past this structure and went further up the right side of the plant.