Morphology
The physical form, structure, or shape of something—in astronomy, the observable characteristics of celestial objects like their size, brightness pattern, or emission profile.

The physical form, structure, and observable characteristics of an object or phenomenon. In astronomy and astrophysics, it refers to measurable properties such as shape, size, brightness distribution, and emission patterns that distinguish one type of object or event from another.
What this means in real life
A doctor examines a patient's blood cells under a microscope and notes their morphology—whether they're round, elongated, or irregular—to diagnose disease. Similarly, astronomers compare the morphology of radio bursts to classify whether they're one-time events or repeating sources.
What it isn’t
Morphology is not about why something has a particular form or what causes it to function that way—it's purely descriptive. It describes what you observe, not the underlying mechanism or reason behind those observations.
Commonly misused online
People often use 'morphology' as a synonym for 'evolution' or 'change over time,' but it simply means the form or structure at a single moment, not how something transforms. A creature's morphology is its shape now, not how it became that shape.
Based on 3 reference sources, including primary sources. Last verified July 16, 2026.