Observing

Jupiter’s moon events enthral observers

2 January 2015 Ade Ashford

The continued edgewise orbital aspect of Jupiter’s large moons Io, Europa, Ganymede and Callisto means that they still regularly eclipse and occult each other. Multiple shadow transits also continue throughout January.

Jupiter Great Red Spot
News

Jupiter’s ‘sunburnt’ Great Red Spot

12 November 2014 Astronomy Now

A new analysis of data from NASA’s Cassini mission in combination with lab experiments contradicts the leading theory that the striking colour of Jupiter’s Great Red Spot is due to reddish chemicals upwelling from below.