Every lens in pixel Galileo Galilei's workshop has to be ground to exactly the right curve, and that means numbers, lots of them. Tonight the telescope on his rooftop observatory is blurry, and the only way to sharpen it is a round of Telescope Squares.
Each right answer turns the focus wheel a notch, and Jupiter slowly comes into view. A streak brings its little moons out one by one; a wrong answer smears the whole sky again. Get it sharp before the clouds roll in and the night is his.










