Phil builds a balloon powered car in the lab. Then he tries to make one big enough to ride. Can the Science Max build team find a big enough balloon? Or are balloons the way to go? Plus, Newton's ...

What does it take to land a Rottweiler on one of Jupiter's moons? Quite a lot, actually. Even a fictional sojourn to Io and Europa requires at least three authors, an illustrator, a handful of human ...