nasa, Juno, Jupiter,

Jupiter moon Ganymede's environment unique: NASA probe

NASA's Galileo spacecraft spent eight years orbiting Jupiter. During that time, the hearty spacecraft sent back spates of discoveries on the gas giant's moons, including the observation of a magnetic environment around Ganymede that was distinct from Jupiter's own magnetic field. May 2, 2018
Earth, Magnetic field,

No, the Earth's geomagnetic field is not going to flip, only weaken

The Earth's magnetic field is weakening and this has led scientists to speculate that the field is undergoing a complete reversal. However, previous extreme events and their patterns show that this time, the magnetic field will wobble, but recover without too much harm done. May 1, 2018