While there is a lot of negative press about NASA in alternative news arena, linking its foundation to a murky sub-story of Nazi infiltration, some of the scientists working there have their minds firmly focused on space, and discovering its mysteries through exploration and analysis. Jupiter is a potential future second sun in our near neighbourhood, and it has a moon, Ganymede, in its orbit that has some interesting features, such as polar zone auroras formed by plasma in Jupiter's magnetosphere. Nasa gathered this data from their space probe, Galileo back in 1996 but have revisited the same data for further analysis and brought forward new information.
https://www.nasa.gov/feature/goddard/2018/old-data-new-tricks-fresh-results-from-nasa-s-galileo-spacecraft-20-years-on
"As it cruised around Jupiter, Galileo also happened to fly right through an explosive event caused by the tangling and snapping of magnetic field lines. This event, called magnetic reconnection, occurs in magnetospheres across our solar system. For the first time, Galileo observed strong flows of plasma pushed between Jupiter and Ganymede due to a magnetic reconnection event occurring between the two magnetospheres. It’s thought that this plasma pump is responsible for making Ganymede’s auroras unusually bright."
There's a great pdf graphic "Ganymedes_magnetosphere_infographic" at the link which is too large to upload here. It depicts Ganymede, the only moon of Jupiter to have its own magnetosphere, which is cocooned within Jupiter's own magnetosphere. This offers protection from interstellar radiation and any harmful incoming radiation from the Sun.
https://www.nasa.gov/feature/goddard/2018/old-data-new-tricks-fresh-results-from-nasa-s-galileo-spacecraft-20-years-on
"As it cruised around Jupiter, Galileo also happened to fly right through an explosive event caused by the tangling and snapping of magnetic field lines. This event, called magnetic reconnection, occurs in magnetospheres across our solar system. For the first time, Galileo observed strong flows of plasma pushed between Jupiter and Ganymede due to a magnetic reconnection event occurring between the two magnetospheres. It’s thought that this plasma pump is responsible for making Ganymede’s auroras unusually bright."
There's a great pdf graphic "Ganymedes_magnetosphere_infographic" at the link which is too large to upload here. It depicts Ganymede, the only moon of Jupiter to have its own magnetosphere, which is cocooned within Jupiter's own magnetosphere. This offers protection from interstellar radiation and any harmful incoming radiation from the Sun.