On Jupiter, aurorae are linked to different phenomena, some of which have not yet been explained. Combined observations by means of the Hisaki and Hubble satellites have made it possible to identify one of these previously poorly understood mechanisms

Observations conducted with the help of the Hubble and Hisaki satellites has made it possible to understand the process at work behind the appearance of some aurorae on Jupiter. These aurorae are caused by a redistribution of plasma in a region of the planet’s magnetosphere. Researchers have also been able to completely rule out the solar wind as being the cause of these particular aurorae. The dynamics of the aurorae on Jupiter depend on a number of different processes which are often very different to those we can observe on Earth. The mechanisms involved have not yet revealed all their secrets. The singular nature of these mechanisms within the solar system could hide the fact that they are quite common in the wider universe given that the gas giant Jupiter is very similar to the majority of exoplanets that have been discovered to date. Understanding these physical phenomena and differentiating them from what we already know should enable us to develop tools in order to better understand different mechanisms spread throughout the cosmos.

> Read the article Spotlight on Jupiter’s aurorae