I have been playing Angry Birds Space for a few days so far (90 out of 90 stars for Pig Bang), and so far to get three stars, you need to finish all of the levels with only one bird. I was wondering if this is true for the rest of the game. Thanks!
Can you get three stars on all Angry Birds Space levels using only one bird
angry-birds-space
Related Solutions
If you can hit the 3rd vertical board at the top at the right spot (screenshot below), it will cause enough force to cause the cement block to drop on the first pig, and the ice block to hit the 2nd pig, which will then push things enough to knock over the tower with the 3rd pig.
I did this 3 times and averaged about 48,000 on each attempt which was enough for 3 stars on the iOS version.
(Un?)fortunately, Angry Birds is pretty much non-deterministic for touchscreen devices, so sometimes you just have to keep trying and hope you get lucky. This is especially true for this level.
The general idea here is to create a chain reaction where one rock would burst the bubbles of the other ones. Both vegetables and rocks can burst bubbles, but only rocks can damage the vehicle. It takes around 4 rock impacts to destroy the pigmobile. Since gravity is at work here, aiming higher helps.
Here are two not-very-helpful screenshots that'll hopefully illustrate the idea. And yes, getting 76k requires you to only use the first bird.
Best Answer
No, this is not true for all levels. Using less birds is only more efficient if the amount of damage done by each additional bird will net you less than 10 000 points, the amount of score you get for each bird not used.
For instance, Pig Bang 1-14 can be completed with only one bird, but to get three stars you would need to use all three to cause the maximum amount of damage, as per my answer here: https://gaming.stackexchange.com/a/57853/3936