The Moon is transitioning into a Waxing Crescent phase with 23% illumination as of Thursday, June 18, according to NASA’s Daily Moon Guide. This phase marks the beginning of a new lunar cycle, leading toward the next Full Moon on June 29. Observers can view the Mares Fecunditatis and Crisium with the naked eye during this period.
What can you see during the current lunar phase?
Tonight, the Moon offers specific landmarks for those looking upward. According to NASA’s observation data, the Mares Fecunditatis and Crisium are visible to the naked eye. These large, dark basaltic plains, often called “seas,” provide distinct contrast against the lunar surface.

If you use binoculars or a telescope, the view expands significantly. You can catch a glimpse of the Endymion Crater, a feature that remains difficult to distinguish without magnification. As the Moon continues to wax, more of the surface will become visible each night.
Why do Moon phases change every month?
NASA reports that the Moon completes one orbit around Earth approximately every 29.5 days. This movement creates a repeating sequence known as the lunar cycle. While the same side of the Moon always faces our planet, the amount of surface illuminated by the Sun changes based on its position in orbit.
The cycle moves through eight recognized phases. It begins with the New Moon, where the Moon is positioned between Earth and the Sun, making it invisible to the eye. It then progresses through the Waxing Crescent, First Quarter, Waxing Gibbous, and finally the Full Moon.
Following the Full Moon, the cycle reverses through the Waning Gibbous, Third Quarter, and Waning Crescent phases before returning to darkness.
How is technology changing lunar observation?
While traditional telescopes remain the standard for professional astronomy, a trend toward “citizen science” is growing. Increased accessibility to high-resolution smartphone sensors and portable digital telescopes is allowing amateur observers to document lunar changes with unprecedented detail.
This shift mirrors a broader trend in space science where data from backyard observers often supplements professional datasets. As lunar interest grows, more people are using mobile applications to track the exact timing of phases and the visibility of specific craters like Endymion.
When is the next Full Moon?
The next opportunity to view a fully illuminated Moon occurs on June 29. During a Full Moon, the entire face of the Moon is lit by the Sun, providing maximum brightness for observers.

Frequently Asked Questions
What is a Waxing Crescent moon?
A Waxing Crescent occurs when a small sliver of light appears on the right side of the Moon in the Northern Hemisphere, indicating the illuminated area is growing.
Can I see lunar craters without a telescope?
While you can see large features like the Mares (seas) with the naked eye, smaller details like the Endymion Crater typically require binoculars or a telescope.
How long is a lunar cycle?
According to NASA, the Moon completes its cycle of phases in about 29.5 days.
Have you spotted the crescent moon tonight? Share your observations in the comments below or subscribe to our newsletter for more celestial updates.
