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Rare 'Blue Micromoon' Happening Sunday Morning — Here's What Time to Look Up
The second full moon of May 2026 will peak at 3:45 a.m. CT and appear smaller than usual because it is a micromoon.
- Tomorrow, May 31, the Blue Moon peaks at 3:45 a.m. CT, marking the smallest full moon of 2026.
- Because the Moon's 29.5-day cycle does not perfectly match the calendar month, two full moons occur in May 2026, creating this rare monthly Blue Moon event.
- A Blue Micromoon can appear up to 14% smaller than an average full moon because it sits around 251,000 miles from Earth, making it appear dimmer in the night sky.
- Astronomer Gianluca Masi and the Virtual Telescope Project in Manciano, Italy will host a free livestream beginning 9:30 p.m. EDT on May 30, allowing global viewers to observe the event.
- The Strawberry Moon peaks June 29, while monthly Blue Moons occur roughly every 30 months according to NASA, making tomorrow's event relatively rare.
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The next full moon of May will take place on Sunday May 31 at 2:45 a.m. Costa Rica time and will be known as the blue moon, because it will be the second full moon recorded during the same calendar month. According to the Cientec Foundation, the term Blue Moon (blue moon) does not refer to the color on the Moon. Professor José Villalobos explained that the expression comes from the ancient English belewe moon, which means “a traitorous moon.” Th…
In addition to being a special full moon, this occasion will be accompanied by a micromoon, considered the smallest and most distant of the year seen from Earth.
Coverage Details
Total News Sources26
Leaning Left6Leaning Right1Center8Last UpdatedBias Distribution53% Center
Bias Distribution
- 53% of the sources are Center
53% Center
L 40%
C 53%
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