On September 5 of 1977, VOYAGER 1 has started its epic journey from Cape Canaveral, Florida. It is a space probe launched by NASA. It was launched to study the outer solar system. In 1979 and 1980, it has crossed Jupiter and Saturn and has headed out of the solar system. It has become the FIRST SPACECRAFT to reach the interstellar space in 2012. It still remains an unknown reason that how it has crossed the boundary. It still continues to explore the journey around the universe. The tracks around outer solar system is being studied by the Voyager 1 and is progressing in an eminent manner. The epic launch which was made on this day in 1977 is a milestone in the space history.