People have long been curious about the solar system. Since the 1960s, several probes, orbiters, landers, and rovers have been sent out to explore and study the planets and their moons. What incredible discoveries were made during these daring missions? And what will be needed for humans to visit the planets in person? Max Axiom and the Society of Super Scientists learn about various missions to other planets and the risks involved with sending people across the solar system and beyond.