Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Voyager program is a series of U.S. unmanned space missions that consists of a pair of unmanned scientific probes, Voyager 1 and Voyager 2. They were launched in 1977 to take advantage of a favorable planetary alignment of the late 1970s. Although they were officially designated to study just Jupiter and Saturn, the two probes were able to continue their mission into the outer solar system. They are currently on course to eventually exit the solar system. These probes were built at JPL and were funded by NASA. Voyager 1 is currently the farthest human made object from earth.
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