Waxing Gibbous Moon to Shine at 69% on May 25, 2026

On Monday, May 25, 2026, the Moon will be in a waxing gibbous phase, with about 69% of its disk illuminated, according to NASA’s Daily Moon Guide. Observers with the naked eye will see a mostly bright Moon, while binoculars can reveal additional features such as the Endymion and Clavius craters, and a telescope will expose the Apollo 16 and 17 landing sites and the Rima Ariadus.

The next full Moon is scheduled for May 31, 2026. NASA notes that the lunar cycle takes roughly 29.5 days and proceeds through eight phases: new moon, waxing crescent, first quarter, waxing gibbous, full moon, waning gibbous, last quarter, and waning crescent.