If a baseball team traveled to Mars for an interplanetary away game, shortstops and second basemen would become instant sluggers, benefiting from the reduced gravity and thinner air. And according to a new study, pitchers might find their curveballs behaving like screwballs. The reverse behavior would owe to Mars’ practically nonexistent atmosphere and the complex “fluid dynamics” that make a spinning ball curve. Finally, to the delight of the hitters, tricky pitches on Mars would not be nearly as lively as here on Earth.