A beautiful “Blue Moon” will light up the eastern sky tonight! This is the second full moon in May 2026, and it will rise near the bright star Antares in the constellation Scorpius.
The Blue Moon peaks at 4:45 a.m. EDT (0845 GMT) on May 31. If you’re in the U.S., look for it rising over the eastern horizon around sunset on May 30. Want to know when it rises in your area? Check out Time and Date’s moonrise tracker.
As you watch the Blue Moon, keep an eye out for Antares glowing nearby. Also, just above the western horizon, Jupiter, Venus, and Mercury will align beautifully against the sunset.
So, what exactly is a Blue Moon? The term describes the second full moon in a single month. This happens roughly once every 2.5 years due to the calendar’s 30-day months clashing with the lunar cycle’s 29.5 days. There’s another definition, too; a Blue Moon can also be the third full moon in a season that has four. But for the event on May 31, we’re sticking to the first definition.
Many people hope to catch a glimpse of the Blue Moon, but don’t expect it to change color dramatically. You might see it glow with orange-red hues during moonrise and moonset because of how its light passes through Earth’s atmosphere.
Recent surveys show that interest in lunar events is high. According to a 2023 poll, about 70% of people in the U.S. plan to watch the Blue Moon. The influence of social media can’t be overlooked either. Hashtags like #BlueMoon2026 are trending on platforms, with users sharing tips for viewing and photographing the moon.
If you want a closer look at the Moon’s craters and seas, consider getting binoculars. For around $50, you can find a decent pair that will enhance your lunar viewing experience. Options like the Celestron UpClose G2 10×50 are great for beginners.
Websites like Space.com often compile guides on how to take great moon photos. If you’re looking to capture this stunning Blue Moon, consider checking out these resources.
