Robert Goddard's innovations in liquid-fueled rockets — assisted by his wife, Esther — still resonate 100 years after his pioneering flight.
2 seconds that changed the world: Robert Goddard launched the 1st liquid-fueled rocket 100 years ago today
Source: space
Source Link: https://www.space.com/space-exploration/2-seconds-that-changed-the-world-the-1st-liquid-fueled-rocket-launched-100-years-ago-today