Today is the summer solstice (in the northern hemisphere). More precisely, the solstice occurred at 5:15am here in the Eastern timezone. The summer solstice is the moment at which the sun has ‘traveled’ to its northernmost latitude, in its annual cycle of apparent movement to the north in summer and to the south in winter. (It’s a great day for those of us with solar panels, because it means we’re getting hours of sunlight!) Read on.