NASA's Jet Propulsion Laboratory

The Jet Propulsion Laboratory is a leader in robotic space exploration, sending rovers to Mars, probes into the farthest reaches of the solar system, and satellites to advance understanding of our home planet. JPL’s first spacecraft, Explorer I, helped lift America into the Space Age. Our spacecraft have flown to every planet in the solar system, the Sun, and into interstellar space in a quest to better understand the origins of the universe, and of life. Stops on the tour include Mission Control, Visitor Center/Museum, and Spacecraft Assembly. U.S.