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Missions Encyclopedia Entry 1778790545

** The **Voyager Interstellar Mission** is a historic space exploration project that has been traveling through interstellar space since 2012, providing unprecedented insights into the outer reaches of our solar system and beyond. ## Overview The **Voyager Interstellar Mission** is a pioneering space exploration project launched by NASA in 1977, with the primary objective of studying the outer Solar System and beyond. The mission consists of two identical spacecraft, **Voyager 1** and **Voyager 2**, designed to explore the outer planets and their moons, as well as the interstellar medium. The Voyager spacecraft are equipped with a range of scientific instruments, including cameras, spectrometers, and magnetometers, which have enabled scientists to gather an unprecedented wealth of data about the outer Solar System. The Voyager spacecraft were designed to take advantage of a rare alignment of the outer planets, which occurred in the late 1970s. By launching the spacecraft in 1977, NASA was able to send them on a trajectory that would allow them to visit Jupiter, Saturn, Uranus, and Neptune, as well as the Kuiper Belt and interstellar space. The Voyager spacecraft are powered by radioisotope thermoelectric generators (RTGs), which provide a reliable source of energy for the spacecraft's instruments and communication systems. ## History/Background The Voyager Interstellar Mission was conceived in the early 1970s, as a follow-up to the successful **Pioneer 10** and **Pioneer 11** missions, which had explored the outer Solar System in the late 1960s and early 1970s. The Voyager project was led by NASA's Jet Propulsion Laboratory (JPL), with a team of scientists and engineers from across the United States. The Voyager spacecraft were designed and built by a consortium of companies, including NASA's Marshall Space Flight Center, the Jet Propulsion Laboratory, and the Lockheed Missiles and Space Company. The Voyager spacecraft were launched on separate trajectories in August and September 1977, with Voyager 1 traveling faster than Voyager 2. The spacecraft encountered Jupiter in March 1979, followed by Saturn in August 1981. Voyager 2 then visited Uranus in January 1986 and Neptune in August 1989, while Voyager 1 continued on a trajectory that would take it into interstellar space. ## Key Information The Voyager Interstellar Mission has achieved numerous milestones and set several records in the field of space exploration. Some of the key facts about the mission include: * **Distance traveled**: As of 2023, Voyager 1 has traveled over 14.5 billion miles (23.3 billion kilometers) from Earth, making it the most distant human-made object in space. * **Interstellar space**: Voyager 1 entered interstellar space in August 2012, becoming the first human-made object to do so. * **Cosmic rays**: The Voyager spacecraft have detected high-energy cosmic rays, which are thought to originate from outside the Solar System. * **Magnetic fields**: The Voyager spacecraft have measured the magnetic fields of the outer planets and the interstellar medium. * **Gas and dust**: The Voyager spacecraft have detected gas and dust in the outer Solar System and interstellar space. ## Significance The Voyager Interstellar Mission has had a profound impact on our understanding of the outer Solar System and interstellar space. The mission has provided scientists with a wealth of data about the magnetic fields, gas, and dust in the outer Solar System, as well as the properties of interstellar space. The Voyager spacecraft have also served as a technological demonstration of the capabilities of space exploration, paving the way for future missions to the outer Solar System and beyond. INFOBOX: - **Name:** Voyager Interstellar Mission - **Type:** Space exploration mission - **Date:** 1977 - **Location:** Outer Solar System and interstellar space - **Known For:** First human-made objects to enter interstellar space TAGS: **Voyager**, **Interstellar space**, **Space exploration**, **Outer Solar System**, **Cosmic rays**, **Magnetic fields**, **Gas and dust**, **NASA**, **JPL**, **Pioneer**, **Spacecraft**