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
Mission: Space nearly $20 million US. The companies settled in January 2009. The attraction was completely closed for a refurbishment on June 5, 2017. During the D23 Expo 2017, it was confirmed that the Green Mission would be given a new video simulating a flight around the Earth, and the Orange Mission would keep the Mars mission, but with updated graphics. The attraction reopened on August 13, 2017. Mission: Space is meant to simulate astronaut training for the first manned mission to Mars aboard the fictional X-2 Deep Space Shuttle in 2036, right after the seventy-fifth anniversary of Yuri Gagarin becoming the