Results for "Mariner 10"
Mercury Planet
Mercury is the Sun‑ward innermost, smallest rocky planet, known for its extreme temperatures, swift orbit, and a surface scarred by ancient impacts.
MathematicsGravity Assist
A gravity assist maneuver uses the gravitational pull of a planet to alter a spacecraft's trajectory and velocity, enabling fuel-efficient travel through the solar system.
Space & AstronomyMissions Encyclopedia Entry 1780232946
Voyager 1 is a historic space mission that has traveled farther than any human-made object, providing unparalleled insights into the outer Solar System and interstellar space. ## Overview Voyager 1 is a space probe launched by NASA on September 5, 1977, as part of the Voyager program. The mission was designed to study the outer Solar System and beyond, with a focus on the Jupiter and Saturn systems. The spacecraft was built to withstand the harsh conditions of space, including extreme temperatures, radiation, and the vacuum of interstellar space. Voyager 1 is powered by a radioisotope thermoelectric generator (RTG), which converts the heat generated by the decay of radioactive isotopes into electricity. The Voyager spacecraft are named after the explorers of the 18th century, with Voyager 1 named after the British explorer James Cook's ship, HMS Endeavour's companion ship, the HMS Discovery's companion ship, the HMS Adventure, and the British explorer James Cook's ship, HMS Endeavour. Voyager 1 is a twin spacecraft with Voyager 2, which was launched on August 20, 1977. The two spacecraft were designed to fly by Jupiter and Saturn, while Voyager 1 was also intended to study the outer reaches of the Solar System and the heliosphere, the region of space influenced by the Sun. ## History/Background The Voyager program was conceived in the 1960s as a follow-up to the Mariner 10 mission, which flew by Venus and Mercury. The program was designed to take advantage of a rare alignment of the outer planets, which would allow the spacecraft to fly by Jupiter and Saturn in a single mission. The Voyager spacecraft were built by NASA's Jet Propulsion Laboratory (JPL) in Pasadena, California, and were launched from Cape Canaveral Air Force Station in Florida. Voyager 1 was launched on September 5, 1977, and flew by Jupiter on March 5, 1979. The spacecraft's instruments provided a wealth of new information about the planet's atmosphere, magnetic field, and moons. Voyager 1 then flew by Saturn on November 12, 1980, and continued on its journey into the outer Solar System. In 1990, Voyager 1 crossed the heliopause, the boundary between the heliosphere and interstellar space, becoming the first human-made object to enter interstellar space. ## Key Information Voyager 1 has traveled over 14 billion miles (22.5 billion kilometers) from Earth, making it the most distant human-made object in space. The spacecraft is now traveling at a speed of about 38,000 miles per hour (61,155 kilometers per hour), and is about 125 astronomical units (AU) from the Sun. One AU is the average distance between the Earth and the Sun, so Voyager 1 is now about 125 times farther away from the Sun than the Earth. Voyager 1 carries a Golden Record, a gold-plated copper record containing sounds and images of Earth, including natural sounds, music, and human voices. The record is intended to serve as a message to any extraterrestrial life form that might encounter the spacecraft. Voyager 1 also carries a Cosmic Ray System, which is designed to study high-energy particles from outside the Solar System. ## Significance Voyager 1 has provided a wealth of new information about the outer Solar System and interstellar space. The spacecraft's instruments have allowed scientists to study the magnetic fields, atmospheres, and moons of the outer planets, as well as the composition and structure of the interstellar medium. Voyager 1 has also helped scientists to better understand the heliosphere and the boundary between the heliosphere and interstellar space. Voyager 1's journey has also raised important questions about the origins of life in the universe and the possibility of extraterrestrial life. The spacecraft's Golden Record contains a message from humanity, which is intended to serve as a greeting to any extraterrestrial life form that might encounter the spacecraft. Voyager 1's journey has also inspired new generations of scientists and engineers, who are working to develop new technologies and missions to explore the universe. INFOBOX: - Name: Voyager 1 - Type: Space Probe - Date: September 5, 1977 - Location: Interstellar space - Known For: First human-made object to enter interstellar space TAGS: Space Exploration, Voyager Program, Outer Solar System, Interstellar Space, Golden Record, Cosmic Ray System, NASA, Space Probe, Spacecraft, James Cook, James Cook's HMS Endeavour, HMS Discovery, HMS Adventure, Mariner 10, Jupiter, Saturn, Heliosphere, Heliopause, Extraterrestrial Life.