A rare blue micromoon arrives this weekend and won't be back until December 2028. Here's what to expect.

How to Best See This Weekend’s Rare Blue Micromoon

A rare blue micromoon — May's second full moon coinciding with lunar apogee — peaks at 4:45 a.m. EDT on May 31, appearing 6% smaller and 10% dimmer than average; the next occurrence is not expected for over 25 years. Best observed with clear, unobstructed skies away from light pollution: Northern Hemisphere viewers will find it near Antares in Scorpius, while observers south of the equator may witness a brief lunar occultation of the star.