I'm back from sunny Argyll. It was far hotter and sunnier than I would have expected.

More immediately, I've just come in from standing in a very cold field for an hour watching the Northern Lights gently illuminate the night sky. There were meteors to watch too – shooting across both Orion and the Pleiades. A deep reddish glow in the sky, darker than the glow from a city. Tinges of green. Glowing streaks overhead. Delightful and strange.