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A birthplace of the American space age, this legendary laboratory helped launch the first U.S. satellite and has spent decades sending robotic explorers across the solar system. Its story blends bold engineering, scientific curiosity, and some of NASA’s most memorable missions.

by Jet Propulsion Laboratory (U.S.)
Founded in 1936 by researchers at the California Institute of Technology, the Jet Propulsion Laboratory began with early rocket experiments and later became a key part of the U.S. space effort. JPL is owned and sponsored by NASA and managed by Caltech, and it has grown into one of the world’s best-known centers for robotic space exploration.
The lab played a major role in the launch of Explorer 1, the first U.S. satellite, and went on to lead or support landmark missions to the Moon, Mars, Jupiter, Saturn, and beyond. NASA describes JPL as a leader in robotic exploration, and Caltech highlights its work not only on planetary missions but also on Earth science and space-based astronomy.
Today, JPL is especially associated with the missions that bring distant worlds close to home: Mars rovers, deep-space probes, and the Deep Space Network that helps spacecraft communicate across the solar system. For listeners drawn to discovery, invention, and the practical side of wonder, JPL’s story offers a fascinating behind-the-scenes look at how exploration really happens.