Editing Planetary core (section)

====Jupiter====
Jupiter has an observed magnetic field generated [[Jupiter#Internal structure|within its core]], indicating some metallic substance is present.<ref name="Pollack, et al. 1977" /> Its magnetic field is the strongest in the Solar System after the Sun's.

Jupiter has a rock and/or ice core 10–30 times the mass of the Earth, and this core is likely soluble in the gas envelope above, and so primordial in composition. Since the core still exists, the outer envelope must have originally accreted onto a previously existing planetary core.<ref name="Stevenson 1982" /> Thermal contraction/evolution models support the presence of [[metallic hydrogen]] within the core in large abundances (greater than Saturn).<ref name="Pollack, et al. 1977" />