What does selenology mean?
Selenology is the scientific study of the Moon. It is a specialized branch of astronomy that examines the Moon's origin, internal structure, surface features, composition, movements, history, and geological activity. Research in the field draws on observations from Earth, robotic spacecraft, orbiters, landers, and samples collected by crewed and uncrewed missions. It has helped scientists investigate questions about the formation of the Moon, the history of impact events, the behavior of lunar materials in different environments, and the possibilities for future exploration. Although selenology may sound unfamiliar, it is the clearest formal name for the wider scientific study of Earth's natural satellite, while more specialized terms such as selenography refer chiefly to the mapping and description of its surface.
nounSelenology is the branch of astronomy concerned with the study of the Moon, including its physical features, formation, history, movements, and surface conditions.
- The scientific study of the Moon, including its origin, structure, surface, motion, history, and evolution.
"The findings of selenology have helped scientists understand the Moon's origins and geological history."
"Modern selenology relies on spacecraft observations, remote sensing, and samples returned by lunar missions."
"A course in selenology examines the Moon's craters, maria, composition, and geological history."
The plural is uncommon and is used chiefly when referring to selenology as a field or discipline in different contexts or traditions.
"The histories of selenologies in different countries reveal changing scientific priorities over time."
Selenology takes its name from Selene, the Greek goddess of the Moon, making it the science of Earth's closest celestial companion.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does selenology come from?
Selenology was formed in the 19th century from the Greek selēnē, meaning "Moon," combined with the suffix -logy, denoting the study of a subject. The same Greek root appears in names such as selenite and selenium, while Selene remains the name of the Greek goddess associated with the Moon. The word's formation reflects the established practice of naming scientific fields with -logy.
Related word forms
How selenology is actually used
Selenology is a formal and uncommon academic term. In general writing, lunar science or the study of the Moon is often clearer.
Easily confused with selenology
Lunology is a less common term for the study of the Moon, while selenology is the standard scholarly name.
Selenography specifically concerns mapping and describing the Moon's surface, whereas selenology covers the Moon as a whole.