Bill Nye the Science Guy meets The Magic School Bus! This is the second book in a new STEM-based picture book series from the Emmy Award-winning host of PBS's Design Squad and Design Squad Nation, Nate Ball. With a lively cast of characters and vibrant illustrations by Wes Hargis, it's an adventure in learning! Ever look up at the sky and wonder how many planets there are? Or want to know how many Earths could fit within the Sun? Take a ride 3.6 billion miles away to answer these questions and more while exploring the solar system with Nate and his team of adventurous scientists! Walk on the moon, fly with a satellite, gaze at comets, and discover why Pluto isn't a planet anymore.