50 years after Apollo 11 made history, NASA is getting ready to send astronauts back to the Moon. After that, Mars is next up. We're going to need a power supply that can keep humans alive in space for years at a time — but it's got to be small, light, and tough as nails. Could a miniature nuclear reactor be the answer? This is a story about perseverance, teamwork, and faith in an idea against all odds. Don't be fooled by the name — these folks aren't clowning around.