Space Observatory 759pc Escape Puzzle

During an evening stroll, you notice a strange light in the sky. Out of sheer curiosity, you go to the astronomy section at the nearby library. As you pick up a book entitled “Discovering Outer Space,” a note falls to your feet. The note reveals that the light is actually an asteroid barreling toward earth! Piece together the 759 pieces and solve the hidden riddles to save the planet!