The May full moon phase will occur at 1:23 p.m. EDT (1723 GMT) on May 1, when the lunar disk will appear opposite the sun in the sky, with its familiar Earth-facing side fully lit. The May full moon is known as the "Flower Moon", in reference to the plentiful blooms that burst to life as the warm spring weather takes hold.
May will feature not one, but two full moons, with the second peaking at 4:45 a.m. EDT on May 31 (0845 GMT) on May 31. The second full moon in any given month is known as a Blue Moon. A monthly Blue Moon occurs roughly once every 2.5-3 years, so we won't see another month with two full moons until December 2028, according to the Royal Museums Greenwich.
