Magnetosphere of Jupiter By 1973 the magnetic moment was known within a factor of two, whereas the tilt was correctly estimated at about 10°. The modulation of Jupiter's DAM by Io (the so-called Io-DAM) was discovered in 1964, and allowed Jupiter's rotation period to be precisely determined. The definitive discovery of the Jovian magnetic field occurred in December 1973, when the Pioneer 10 spacecraft flew near the planet. As of 2009 a total of eight spacecraft have flown around Jupiter and all have contributed to the present knowledge of the Jovian magnetosphere. The first space probe to reach Jupiter was Pioneer 10 in
Space Probe (Wonderland Sydney) a stop. The ride opened in 1995, three years after the opening of The Demon. It was the second and only new ride installed in the park. The official cost to build the tower was published at AUD$10 million. Space Probe (Wonderland Sydney) Space Probe was a Giant Drop ride located at Wonderland Sydney in Australia. It was manufactured by Intamin and opened as the world's tallest and fastest free-fall ride. The ride opened in November 1995 and closed on 26 April 2004. The ride consists of 3 vehicles around a central tube which is tall. Once passengers arrive at