Like Earth, Jupiter has auroras that gleam at its poles—a result of the planet’s magnetic field interacting with energetic particles streaming from the Sun. In recent years astronomers have noticed that Ganymede and Io, two of Jupiter’s moons, each add their own personal stamp to the planet’s auroras. Pick out these planetary footprints in Jupiter’s swirling aurora on an image series from the Hubble Space Telescope in the newest Astro Bulletin, below.

Check out some of the archaeological traces in Andromeda Galaxy in the recent Astro Bulletin below.

To learn about other recent astronomical discoveries, visit the Science Bulletins website.