The front cover image comes from an edition of the Cambridge Encyclopedia of Astronomy, and was originally drawn with black lines on a white background.[13] It presents successive pulses from the first pulsardiscovered, PSR B1919+21—often referred to in the context of this album by its older name, CP 1919.[13]

The front cover image comes from an edition of the Cambridge Encyclopedia of Astronomy, and was originally drawn with black lines on a white background.[13] It presents successive pulses from the first pulsardiscovered, PSR B1919+21—often referred to in the context of this album by its older name, CP 1919.[13]