Until 2015, it also included a bonus CD-ROM with software programs, latest astronomical photographs, written materials and 'classic' episodes of The Sky at Night from the BBC archives (from 2015, the monthly content was moved online).
Until 2015, it included supplementary materials such as software applications, current astronomical images, written content, and classic episodes of The Sky at Night from the BBC archives (from 2015, the monthly updates were transferred to a digital format).