Tonight’s Moon: Phase, Features & When to See the Next Full Moon

Tonight’s Moon offers a compelling view for observers, even without specialized equipment. As of Tuesday, March 10, 2026, the Moon is in its Waning Gibbous phase, meaning approximately 61% of its surface is illuminated by the Sun. This phase falls between the Full Moon and the Third Quarter Moon and provides an excellent opportunity to observe lunar features. Whether you’re a casual stargazer or a dedicated lunar enthusiast, there’s plenty to see in the night sky.

Decoding the Waning Gibbous Phase

The lunar phases are a result of the changing angles at which we view the Moon’s illuminated surface as it orbits Earth. The Moon itself doesn’t emit light. we see it because it reflects sunlight. It takes roughly 29.5 days for the Moon to complete one orbit around Earth, cycling through eight distinct phases: New Moon, Waxing Crescent, First Quarter, Waxing Gibbous, Full Moon, Waning Gibbous, Third Quarter, and Waning Crescent. Understanding these phases helps appreciate the dynamic relationship between Earth, the Sun, and our celestial neighbor.

What Can You See Tonight?

Even without optical aid, prominent features like Mare Imbrium (the Sea of Showers), Mare Vaporum (the Sea of Vapors), and the Tycho Crater are often visible to the naked eye. These darker, smoother areas are ancient lava plains, known as maria (Latin for “seas”), formed by volcanic eruptions billions of years ago. Tycho, a relatively young crater, is distinguished by its bright rays – streaks of ejected material that extend outwards from the impact site.

Binoculars enhance the view considerably, revealing details like the Alps Mountains, Apennine Mountains, and Alphonsus Crater. The Alps Mountains, located on the northeastern limb of the Moon, are a rugged range resembling terrestrial mountain chains. The Apennine Mountains, bordering Mare Imbrium to the south, are even more dramatic, featuring peaks like Mons Huygens, the highest point on the Moon at 5,500 meters (18,045 feet). Alphonsus Crater, a large impact crater with a complex central structure, displays interesting features like dark halo craters and possible volcanic vents.

For those with access to a telescope, even more intricate details come into focus. Features like the Apollo 15 landing site, the Fra Mauro Highlands, and the Caucasus Mountains become visible. The Fra Mauro Highlands, a heavily cratered region, were explored by Apollo 14 astronauts. The Caucasus Mountains, extending along the eastern edge of Mare Imbrium, form a striking backdrop to the lunar landscape.

The Violent Birth of Mare Imbrium

Mare Imbrium, one of the most prominent features visible tonight, has a particularly dramatic origin story. According to research, the Imbrium Basin, which Mare Imbrium fills, formed approximately 3.85 billion years ago from a colossal impact event – a collision with a protoplanet. Astronomy Now reports that this impact was one of the most violent in the history of the Solar System. The resulting crater, roughly 1,160 kilometers (721 miles) in diameter, was subsequently flooded with basaltic lava, creating the smooth, dark plain we see today. The Wikipedia entry for Mare Imbrium notes the impactor is estimated to have been 250 ± 25 km in diameter.

Lunar Volcanism and the Moon’s Cooling History

The lava that filled Mare Imbrium and other lunar maria originated from the Moon’s mantle. NASA’s Technical Reports Server details how these eruptions occurred roughly 3.3 billion years ago. Because of the Moon’s relatively small size, it cooled more rapidly than Earth, leading to a cessation of volcanic activity billions of years ago. The smooth surfaces of the maria are a testament to the fluidity of the lava and the relatively low impact rate after the period of intense bombardment that characterized the early Solar System.

Beyond Visual Observation: The Moon as a Scientific Platform

The Moon isn’t just a beautiful object to observe; it’s also a valuable scientific platform. It holds clues about the early history of the Solar System, including the Late Heavy Bombardment – a period of intense asteroid and comet impacts that shaped the inner planets. The Moon served as the location for the first robotic rover deployed on an extraterrestrial body, marking a significant milestone in space exploration. Future lunar missions aim to further unravel the Moon’s mysteries and potentially utilize its resources for future space endeavors.

Looking Ahead: The Next Full Moon and Beyond

For those planning to observe the Moon in the coming weeks, the next Full Moon in North America is predicted to occur on April 1, 2026. As the Moon progresses through its phases, different features will become more or less prominent, offering a constantly changing view. Continued observation and study of the Moon will undoubtedly reveal even more about its fascinating history and its role in the Solar System. Future research will likely focus on refining age estimates for lunar features, analyzing the composition of lunar rocks and soil, and searching for evidence of water ice in permanently shadowed craters.