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) The ride was originally known as "Space Probe 7". The Seven Network were involved in the lead up to the ride's opening, donating the network's logo and credibility. They were contracted as major sponsors, helping with advertising, promotion and the ride's title. After this contract expired the '7' was removed from the title and was thereafter known as Space Probe. Space Probe was the second Giant Drop ride manufactured and installed by Intamin. The first opened in October 1995 as at Kentucky Kingdom in Louisville, Kentucky, USA. The Intamin Giant Drop was the world's tallest free-fall ride for approximately 4