Firstly, a cool gif image series of Io’s shadow going over Ganymede, Jupiter’s largest moon. It is a bit like watching an outer space eclipse. Very cool. It comes from this fellow, an amateur astronomer. If you ask me, the difference between amateur and academic astronomers are mute, both are equally sophisticated. Although the academic scientists will use the huge telescopes and such, both seems to contribute to the field in various ways. (hat tip badastonomy)
There are more space arts of the week, check them out!