The study of jets in the Earth’s magnetosheath has been a subject of extensive investigation for over a decade due to their profound impact on the geomagnetic environment and their close connection with shock dynamics. While the variability of the solar wind and its interaction with Earth’s magnetosphere provide valuable insights into jets across a range of parameters, a broader parameter space can be explored by examining the magnetosheath of other planets. Here we report the existence of anti-sunward and sunward jets in the Jovian magnetosheath and show their close association with magnetic discontinuities. The anti-sunward jets are possibly generated by a shock–discontinuity interaction. Finally, through a comparative analysis of jets observed at Earth, Mars, and Jupiter, we show that the size of jets scales with the size of bow shock.

十多年来，对地球磁层喷流的研究一直是广泛研究的主题，因为它们对地磁环境有深远的影响，并且它们与激波动力学密切相关。虽然太阳风的变化及其与地球磁层的相互作用为一系列参数的喷流提供了有价值的见解，但可以通过研究其他行星的磁层来探索更广泛的参数空间。在这里，我们报告了木星磁层中存在的反向阳和向阳喷流，并显示了它们与磁不连续性的密切关联。反向阳喷流可能是由激波-不连续性相互作用产生的。最后，通过对在地球、火星和木星观察到的喷流的比较分析，我们表明喷流的大小与弓激波的大小成正比。