Check out the YouTube trailers below for a funny little introduction to the pack, as well as the gameplay. (If not, the game itself is on sale for $1.) Rovio has said that it will be coming to other platforms in the weeks ahead, though a timetable has not been set. If you already own the game, the 'Red Planet' update is free of charge and available for download now. Once there, NASA astronaut Don Pettit used the toy and green balloons decorated as pigs to give a real-life demonstration of Angry Birds in space. Guinea pigs also coo to soothe and comfort each other and will chatter and show their teeth to each other if they are angry or want some space. 'Angry Birds Space' has even launched into actual space in the form of a plush toy bird that flew to the International Space Station aboard a Russian Soyuz spacecraft. 'It's a great way to introduce both kids and adults to the wonders of the planet in a fun and entertaining way.'

'Rovio is teaching huge new audiences about NASA's missions to Mars thanks to this collaboration,' said David Weaver, associate administrator for communications at NASA Headquarters in Washington, in a statement. In addition to providing arcade-style fun, however, 'Angry Birds Space: Red Planet' also educates, as it features links to NASA web pages that discuss Mars in more detail, whether it's the recent Curiosity landing or prior visits to the Red Planet.

Free Angry Piggies Space