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The Galileo orbiter found that Europa has a weak magnetic moment, which is induced by the varying part of the Jovian magnetic field. The field strength at the magnetic equator (about 120 nT) created by this magnetic moment is about one-sixth the strength of Ganymede's field and six times the value of Callisto's. [87]
The magnetic field of Jupiter is thought to induce electric current in a salty ocean beneath Europa’s ice, which in turn leads Europa to produce its own magnetic field, therefore by studying the strength and orientation of Europa's magnetic field over multiple flybys, scientists hope to be able to confirm the existence of Europa's subsurface ...
The Europa Clipper Magnetometer (ECM) is a spacecraft magnetometer aboard the planned Europa Clipper mission. It will be used to precisely measure Europa's magnetic field during consecutive fly-bys, allowing scientists to potentially confirm the existence of Europa's hypothesised subsurface ocean. If this ocean exists, the instrument will be ...
Magnetic induction is a powerful tool for probing the subsurface. ICEMAG would have observed the magnetic field near Europa with greatly enhanced sensitivity compared to a similar instrument carried by NASA's Galileo spacecraft, which orbited Jupiter from 1995 to 2003.
Europa (Jupiter II), the second of the four Galilean moons, is the second closest to Jupiter and the smallest at 3121.6 kilometers in diameter, which is slightly smaller than Earth's Moon. The name comes from a mythical Phoenician noblewoman, Europa , who was courted by Zeus and became the queen of Crete , though the name did not become widely ...
The induced magnetic field of Ganymede is similar to those of Callisto and Europa, indicating that Ganymede also has a subsurface water ocean with a high electrical conductivity. [23] Given that Ganymede is completely differentiated and has a metallic core, [9] [82] its intrinsic magnetic field is probably generated in a similar fashion to the ...
In magnetic sounding, currents induced in Europa by the changing Jovian plasma produce a detectable secondary magnetic field that reflects properties of Europa's subsurface ocean such as depth and conductivity. PIMS is composed of three Faraday cups, each with a 90º field of view.
At the surface, the material is exposed to the effects of vacuum, temperature, irradiated by solar UV, and bombarded by material entrained in Jupiter's magnetic field, causing photolysis and radiolysis and the transformation and generation of new organic compounds. [2] The compounds at the surface are likely recycled back into the ocean below. [2]