Missions and Programs
Voyager Program
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NASA's program of twin robotic probes, Voyager 1 and Voyager 2, launched in 1977 to tour the outer planets. Both probes are still operating and have crossed into interstellar space, the most distant human-made objects from Earth.
Facts
Mission TypeRobotic outer planet and interstellar mission 1 Launch DateVoyager 2 launched first, on 20 August 1977. OutcomeOngoing; both probes are still transmitting from interstellar space as of the mid-2020s. 1 Cross-Tradition Connections
Associated With
Repeated gravity assists made the Voyager grand tour of the outer planets possible.
Operated By
Sources
1. NASA History Office
National Aeronautics and Space AdministrationNASA Science, Voyager mission page (science.nasa.gov/mission/voyager)Quote, NASA Science, Voyager mission page (science.nasa.gov/mission/voyager)
Voyager 1 and its twin Voyager 2 are the only spacecraft ever to operate outside the heliosphere, the protective bubble of particles and magnetic fields generated by the Sun.
1. NASA History Office
National Aeronautics and Space AdministrationOperated By: NASA
1. NASA History Office
National Aeronautics and Space AdministrationAssociated With: Voyager 2
NASA Solar System Exploration
National Aeronautics and Space AdministrationAssociated With: Gravity Assist
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