From the description:
After a giant claw kidnaps their eggs, the Angry Birds chase it into a wormhole and find themselves floating in a strange new galaxy – surrounded by space pigs! Luckily the Angry Birds have super powers of their own…
Angry Birds Space features 150 interstellar levels on planets and in zero gravity, resulting in spectacular gameplay ranging from slow-motion puzzles to lightspeed destruction. With regular free updates, brand new birds, brand new superpowers, and a whole galaxy to explore, the sky is no longer the limit!
150 Interstellar levels!
Regular free updates!
Brand new birds!
Brand new superpowers!
Zero-gravity space adventures!
Trick shots using planets’ gravity!
Hidden bonus levels!
Beautifully detailed backgrounds!
If you have a Windows Phone 8 device then you can buy Angry Birds Space here.