I spend so much time in the city that when I occasionally visit the country I am surprised and awed by the presence of stars in the night sky. It’s something I really miss. I gaze up at the heavens and feel such terror and delight, musing on the limitlessness of the cosmos and all the silent and distant civilisations contained therein. Tonight Ollie and I were viewing something extremely rare and special through my father’s enormous telescope. Right now, Sirius (the brightest star in the sky) is at its furthest separation from its companion star, Sirius B (more affectionately known as “the Pup”). I clearly observed the two bodies slightly apart. This will not happen again for about 25 years.