Angry Birds Space Beak Impact bonus level F-8 is unlocked by feathering all levels of Beak Impact Part 1. The strategy is to toss the first can between the bottom two towers on the planet.
If you have an alternate strategy please feel free to leave a detailed comment below.
Launched the first Sardine Can like the video, straight into the gap between the structures and to my surprise it was a one ME level. The lava stones were activated by flying debris and it was over and out!!!
I also just followed the video and one-canned it!!