Cosmic Crystals 7-11 (Angry Birds Space)

Cosmic Crystals 7-11 is the eleventh level in Cosmic Crystals.The objective of level 7-11 is to use the birds to eliminate all the pigs. Get at least 70,000 points for 3 stars.

Difficulty
The northernmost pig in atmosphere is tricky because you must avoid the obstacles to pop him.

Strategy 1
Send the Red Bird to knock three asteroids to press the plunger to detonate the chain of TNT. You have 3 birds left and bonus 30,000 points for leftover birds.

Strategy 2
Send the Red Bird directly to the southernmost pig on the north planet. Snipe the remaining pig far north to finish off the level. The second shot is challenging.

Eggsteroids
It's on the far side of the north planet. Use any bird to claim it.