NASA is testing world's most compact nuclear reactor that holds the key to potential future human-based missions to Mars, the moon as well as the deeper parts of space. This project will further help the space agency's plan to creat habitat on Mars and even Moon. The system has been named the Kilopower project. It can also act as a resource to help power robot based missions into the deep space which lacks the availability of solar energy. Watch this video to know more about the news.