All four giant planets--Jupiter, Saturn, Uranus and Neptune--were visited by Voyager 2. (The first two were also visited by Pioneer 10 and 11 and by Voyager 1, and the probe Ulysses flew by Jupiter, while the probe Galileo is currently in orbit around it.) All four have magnetic fields much stronger than the Earth's,
www.phy6.org/earthmag/planetmg.htm www.phy6.org/earthmag/planetmg.htm
Do other planets have magnetic fields like our Earth?  -  Tyler Givan, KY ... Space probes, such as the Voyager probes, have measured the magnetic fields of the planets and even auroras have been photographed on other planets. The spacecraft Mariner 10 flew by Mercury in 1974 and surprised the science community.
www.uu.edu/dept/physics/Science%20Guy%202004/0409Planet... www.uu.edu/dept/physics/Science%20Guy%202004/0409PlanetMagnetism.htm
No. Venus (even though it has liquid in its core) does not have a magnetic field because of its slow rotation, making the liquid not electrically conducting. Mars does not have a magnetic field, although measurements by space probes have fo...
http://wiki.answers.com/Q/Do_all_planets_have_magnetic_...
Planets with a magnetic field:- ・ Mercury (week field) ・ Earth ・ Jupiter ・ Saturn ・ Uranus ・ Neptune ・ Venus ・ Mars (no field now, but it did have a field once and some of this is fossilized in the oldest rocks) ...
http://wiki.answers.com/Q/Which_planets_have_a_magnetic...
Mercury, Earth, and all of the giant planets have magnetic fields strong enough to deflect the Solar Wind around the planet. Mercury's magnetic field is weak, about 1 percent of the strength of Earth's magnetic field. The gas giants have ve...
http://answers.yahoo.com/question/index?qid=20071208020...
The planets in our solar system can be though of, at their cores, as giant magnets. A planet has magnetic north and south poles, which is why can use a compass ... Home » Technology » Scientific Computing » Studying the Planets' Magnetic Fields with MHD ... Start a discussion for Studying the Planets' Magnetic Fields with MHD...
www.suite101.com/article.cfm/scientific_computing/70628
WHAT GIVES the Sun and its planets magnetic fields? Accepted theory says that they arise from the movement of liquid in their cores, which conduct electricity. As the planets rotate, the movement of the charged particles produces a magnetic field, as in a simple dynamo.
space.newscientist.com/article/mg12617213.300-science-a... space.newscientist.com/article/mg12617213.300-science-a-simple...
"We showed that it is likely that some planetesimals were melted, differentiated into core, mantle and crust and had active dynamos -- the mechanism by which planets generate magnetic fields -- for short periods of time in the early solar system.
www.news.utoronto.ca/science-and-technology/physicists-... www.news.utoronto.ca/science-and-technology/physicists-find-clues-to-planets-birth-in-magnetic-fields.html
The Earth is a good example of a planetary dipole, where the lines of force point in a direction out of the South (magnetic) Pole and into the North (magnetic) Pole. Planets can also show evidence of quadrupoles (4 poles) and octupoles (8-poles). ... How We Detect Magnetic Fields with Spacecraft...
www.windows.ucar.edu/tour/link=/physical_science/magnet... www.windows.ucar.edu/tour/link=/physical_science/magnetism/planetary_magnetism.html
The solar magnetic field extends outward into interplanetary space; it can be measured on Earth and by spacecraft. The solar magnetic field is the dominating magnetic field throughout the interplanetary regions of the solar system, except in the immediate environment of planets which have their own magnetic fields.
www.solarviews.com/eng/solarsys.htm