The full moon rises behind a tree next to the ancient marble Temple of Poseidon at Cape Sounion, southeast of Athens, on the eve of the summer solstice on Monday. The temple, built in 444 BC, was dedicated to Poseidon, god of the sea. Petros Giannakouris/AP

Thanks to the CS Monitor for bringing this image to our attention in their “Photos of the day” series, which are always worth a visit.  The moon, we have been reading in the Monitor and various other news outlets, is a variety that occurs every 46 years. Wishing we might have seen it where Mr. Giannakouris saw it, but by the time we learned about this phenomenon it was already time for morning coffee in Kerala.