Diagram of the Solar System and heliosphere showing the trajectories of the unmanned space probes Pioneer 10,Pioneer 11,Voyager 1 and Voyager 2. These probes were the first to study the outer Solar System,taking advantage of a rare alignment of the gas giant planets to visit them all. The heliosphere is a space in the interstellar medium formed by the Sun and its solar wind. Pioneer 10 was launched on 2nd March 1972,with Pioneer 11 following on 6th April 1973. Voyager 2 was launched on 20th August 1977,followed by Voyager 1 on 5th September 1977. In December 1973 Pioneer 10 was the first probe to encounter Jupiter. In September 1979 Pioneer 11 became the first probe to visit Saturn. Voyager 2 is the only probe to have visited Uranus and Neptune,in 1985 and 1989 respectively. In August 2012 Voyager 1 became the first spacecraft to enter interstellar space | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / NASA |
Bildgröße: | 3000 px × 2285 px |
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