NASA's Astronomy Picture of the Day for October 1, 2026, serves up a composite photograph taken last weekend in Sicily, just outside the town of Nicosia, Italy. The image captures the full moon rising as the sky darkens, with lower clouds reflecting the colors of antitwilight and ash and gas from Mount Etna visible higher in the background. Because a moonrise alone apparently wasn't enough, the universe threw in an active volcano for good measure.

The pink band lower in the sky is called the Belt of Venus - a name that sounds like a celestial burlesque show but is actually just a atmospheric phenomenon. During a full moon, the Moon and the Sun are in opposition in the sky: the moon rises as the sun sets. This cosmic choreography happens roughly every 29.5 days, the length of the lunar phase cycle, though the Moon actually takes about 27 days to orbit Earth. Yes, the math doesn't perfectly line up - the Moon is apparently as bad at keeping a consistent schedule as the rest of us.

In some cultures of the Northern Hemisphere, the September full moon is called the Harvest Moon. NASA poses the question: does your culture have a special name for it? (A full moon by any other name would shine as bright, they note, presumably after someone in the office made that joke and nobody stopped them.)

In administrative news that is significantly less poetic, APOD's email for image submissions has changed, and the main NASA site has moved from apod.nasa.gov to science.nasa.gov/apod. Tomorrow's picture: sharpless - which is either a telescope catalog or a description of the image quality, depending on your optimism.