Pretty good and polished game. It took me a few seconds to figure out the controls, but then it became a fun little game. Sometimes I managed to freeze the game by clicking during transitioning, but it wasn't too annoying. The end game scene should be skipped with a designated button, because this way I always skipped the scene by still trying to save my bin from the nasty trash, and then I didn't even see my score before restarting the game. Usually I ended up with around 20 I guess. The trash coming from below the bin is a bit unfair though. They pushing out the correct ones and dropping into the bin almost instantly and you don't really have a chance against them.
I like your interpretation of the theme, still, I do love space and time travel games. The game reminds me of the Fruit Ninja and similar games, and it looks just as good as them. The audio is flawless for a casual game like this.