As of today, December 28, 2025, the Moon is in its Waxing Gibbous phase, meaning more than half of its surface is illuminated. This presents an excellent opportunity for stargazers to observe lunar features with the naked eye, binoculars, or even a telescope.
What You Can See Tonight
NASA reports that approximately 58% of the Moon is lit tonight. For casual observers, prominent features such as the Mares Fecunditatis (Fertility Sea) and Serenitatis (Serenity Sea), along with the distinct Tycho Crater, are easily visible without any equipment.
Using binoculars enhances the experience, allowing you to spot additional details like the Endymion Crater, the Archimedes Crater, and the rugged Apennine Mountains. More advanced observers with telescopes can even locate the Apollo 11 landing site, the Descartes Highlands, and the small but intriguing Linne Crater.
When to Expect the Next Full Moon
The next Full Moon is scheduled for January 3, 2026, following a previous Full Moon on December 4. Full Moons are significant not only for their visual spectacle but also for their cultural and historical associations, influencing folklore, calendars, and even some scientific studies.
Understanding Lunar Phases
The Moon completes one full cycle—from New Moon to New Moon—in roughly 29.5 days. This lunar cycle determines the phases we observe as the amount of sunlight reflecting off the Moon’s surface changes relative to Earth.
The eight primary phases are:
- New Moon: The Moon is positioned between Earth and the Sun, making its visible side dark.
- Waxing Crescent: A sliver of light appears on the right side (in the Northern Hemisphere).
- First Quarter: Half of the Moon is lit on the right side.
- Waxing Gibbous: More than half is illuminated, but not yet full.
- Full Moon: The entire visible face is brightly lit.
- Waning Gibbous: The Moon begins to lose light on the right side.
- Third Quarter: Half of the Moon is lit on the left side.
- Waning Crescent: A thin sliver of light remains on the left side before fading into darkness.
These phases are not just a visual phenomenon; they influence tidal patterns, animal behavior, and have been a source of fascination for humanity for millennia.
The Moon’s phases are a constant reminder of the celestial dance between Earth and its nearest neighbor. Observing these changes provides a simple yet profound connection to the natural world.
