100 years after Robert Goddard’s 1st liquid-fueled rocket launch, NASA is using the technology to send astronauts back to the moon SpaceIt’s been 100 years since the 1st modern rocket launched. Humans are heading back to the moon ABC Audio Digital SyndicationHow Robert Goddard’s Self-Reliance Crashed His Rocket Dreams IEEE SpectrumFrom Cabbages to Countdowns: NASA Marks 100 Years of Modern Rocketry NASA (.gov)