What is Voyager 2?

Voyager 2 is an unmanned planetary spacecraft, one of the only visits of external planets, and only to complete the planetary big tour-flying, Saturn, Uranus and Neptun-may only once every 176 years. For his visits to all external planets, Voyager 2 is often cited as the most productive spacecraft ever. When images of external planets are displayed in books, magazines and on the Internet, pictures from Voyager 2 are widely used, especially for uranium and Neptune.

Currently, the Voyager 2 is twice as far from the Sun as Pluto, approximately 83.5 AU (earth-sun). It continues to travel from the Sun in 3 Au per year and has sufficient speed to escape the gravitational well of the solar system. Unlike his partner, Voyager 1 , he was launched a month later, but significantly more distant, voyager 2 did not pass outside the area where the solar wind is the primary force in the dynamics of dust, dust dynamics, known as heliosphere. Unfortunately, at the time it does, at the age of 20, the 20th century will begin to run out of its thermal generators of radioisotopes on board.

Launched on August 20, 1977 from the Cape Canaveral in Florida, it took less than a few years to reach Jupiter. The nearest passage of 9 July 1979 made the first observation of volcanic activity on another heavenly body IO. Nine leaching volcanoes were observed, ejecting the material as quickly as 1 km/s in the clouds of 300 kilometers (190 miles) above the surface. Meanwhile, it throws out the material and quickly that some of them achieve escape speeds and distract the magma with free floating in the Jovian system.

using gravitational assistance from Jupiter Voyager 2mperatura and speed of cloud tops on these planets. To date