Happy solstice! At 09:20 UTC today the Sun reached the southernmost point in its annual latitudinal motion. From now on the amount of daylight in the northern hemisphere will increase until the June solstice.

Pah! The only true astronomical celebration at this time of year should be Perihelion! I call upon @chrislintott.bsky.social @profbriancox.bsky.social @profaliceroberts.bsky.social @seanmcarroll.bsky.social and yourself to join me in launching the campaign for the Festival of Perihelion