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Sputnik I was launched by the USSR on October 4, 1957.
Two identical spacecrafts know as Voyager 1 & 2 were designed to study Jupiter and Saturn. Voyager 2 was launched first on August 20, 1977 and its sister craft Voyager 1 went into space on September 5, 1977. Even though Voyager 1 left almost a month after its counterpart, it arrived at Jupiter on March 5, 1979 almost four months sooner than Voyager 2 which arrived on July 9, 1979. The spacecrafts continued to function long past their planned 5 year mission. Voyager 1 continued to orbit Saturn and further study the planet itself as well as its moons, while Voyager 2 went on to study Uranus, Neptune, their moons, and finally was sent on a path into interstellar space where it continues to transmit data. In their joint mission, Voyager 1 & 2 explored all the giant outer planets of the solar system, 48 of the planets' moons, and each of the planets' systems of rings and magnetic fields. Before its long journey in interstellar space, Voyager 2 captured a picture looking across our entire solar system. The information that scientists collected from the Voyager crafts would answer many key questions in astronomy while raising many more new questions which have yet to be answered.
the year it launched was 1981.
1998
The first space shuttle, Columbia, was launched on April 12, 1981.
There are two Voyager spacecraft. Voyager 2 was launched on August 20 1977. Voyager 1, despite its no.1 ranking, was launched second on September 5 1977.
Voyager did not discover any new planets. By the time Voyager was launched we already knew of all the planets in our solar system that we know of today. There were also two Voyager probes, not one. The first planet that either probe studied was Jupiter, which we had known for millennia. Voyager 1 flew by Jupiter in March 1979 while Voyager 2 flew by in July of the same year.
The first probe was Pioneer 6 in 1965, it was a solar probe, and the mission was a success. The second probe was Pioneer 7 one year later. It was also a solar probe and it was also a success. After that we have launched more solar probes, and other probes out into space, almost all have been successful.
the year that the ranger space probe was launched was in 1964.
So far, not space probes have visited Pluto. The New Horizons probe, launched in 2006, will do a flyby of Pluto in 2015. No other missions are in the works.
1981
Space Shuttle Columbia launched STS-1 on April 12th, 1981.
No Space Probes have currently visited Pluto. However NASA launched a space probe called New Horizons to take pictures of pluto and to discover more objects in the Kuiper Belt. New Horizons is expected to arrive at Pluto in July 2015.
1973
1960
Sputnik I was launched by the USSR on October 4, 1957.
April 1981