5 things you need to know about the rare 'blue moon' lighting up the sky tonight
- A 'blue moon' isn't actually blue—it's the second full moon in a single calendar month, and tonight's event is the last chance to see one until 2026.
- The moon will appear slightly larger and brighter than usual, but don't expect a color shift unless volcanic ash or wildfire smoke is in the air.
- Prime viewing time is just after sunset, with the moon reaching peak fullness at 10:35 p.m. local time.
- Skywatchers in North America, Europe, and parts of Asia will have the clearest views, while coastal fog could obscure it for some regions.
- To get the best photos, use a telephoto lens or a smartphone with a tripod, and avoid flash to capture the moon's crisp details.