A discussion of the Spilhaus “World in a Square” projection, used to display all the worlds oceans as a continuous body of water, without interruption.
A description of the components of lunar libration, which allow us to peek a little way into the lunar far side, including some animations of the various effects.
A festive dissertation on the extensive etymological links of the word “stable”, and a discussion of why some of use think of Jesus as having been born in a stable.