Utopia 4-17

Utopia 4-17 is the 17th level in Utopia.

Difficulty
Medium.

Strategy
For Utopia 4-17, blast the top-right icy asteroid with the Lazer bird, causing a domino-effect of explosions and destruction. As needed, try to clear the remaining pigs with a Terence or two.

Walkthrough
http://www.angrybirdsnest.com/angry-birds-space-utopia-level-4-17-walkthrough/