Here is our Space Eagle Total Destruction video walkthrough for Angry Birds Space Cosmic Crystals level 7-5. Toss the Sardine Can in the gap on the west side of the level, calling for the Space Eagle when the Can reaches the northeast corner of the gravitational field. The three pesky pigs on the right can occasionally be troublesome, but they usually get popped by debris.
If you have an alternate strategy please feel free to leave a detailed comment below.
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1. First Sardine Can through the lower gap (almost directly across from the sling) that lets the can bounce of the bottom of the crystal planet. Activate after impact.
2. Second Sardine Can bounces off the lower (southern) crystals of the stone planet and the can goes north towards the pigs. Activate upon hitting the pigs.
@amslimfordy In my version (2.1.1. on android), this level looks different. The two most easterly chainball-pairs are not there. Hence your walkthrough does not work. Here is a screenshot:
https://www.angrybirdsnest.com/members/gladvold/album/picture/13107/
@wrw01 strat still works just fine.