The so-called Blue Moon rose at dusk on Saturday, May 30, marking the second full moon of the month and completing a rare calendar quirk. May began with the full Flower Moon on May 1 and ended with this second full moon — something that happens only every two to three years because the moon’s 29.5-day cycle occasionally fits twice into a single calendar month. Here are all the best images of the Blue Moon from around the world.
The full Blue Moon rises over Visa headquarters and Metro Center in Foster City, California on May 30, 2026. (Photo by Tayfun Coskun/Anadolu via Getty Images)
The moon became full at 4:45 a.m. EDT on Sunday, March 31, but was best viewed at moonrise during dusk the preceding evening, on Saturday, March 30.
A monthly — the second full moon in a single calendar month — won’t happen again until Dec. 31, 2028. They occur roughly every 2.5 years.
The next astronomical highlight is a very close conjunction of two bright planets, Jupiter and Venus, in the post-sunset sky from June 9-11.
