Moon at 37% illumination tonight; next Full Moon arrives May 31

Each month, the Moon traces the same ancient arc across Earth's sky — not changing shape, but revealing how light and angle conspire to create the illusion of growth and loss. On the evening of May 22, 2026, that arc finds the Moon at 37 percent illumination, a Waxing Crescent suspended between darkness and fullness. In nine days, on May 31, it will complete its swell to a Full Moon — the second of May, a rare doubling that calendars mark but the cosmos barely notices. To look up tonight is to participate in a rhythm that has measured human time longer than any clock we have ever built.