Cosmology
The scientific study of the origin, evolution, and eventual fate of the universe.
Cosmology deals with the universe on its largest scales, addressing fundamental questions about its beginning (e.g., the Big Bang), its overall structure, and its ultimate destiny. It often involves theoretical models and observations of very distant objects.
Commonly confused with
- Astrophysics: Cosmology studies the universe as a whole, its origin, evolution, and large-scale structure, while astrophysics focuses on the physical properties of individual celestial objects and their interactions.
Word family
- cosmologist (noun): A scientist who specializes in cosmology.
- cosmological (adjective): Relating to cosmology or the cosmos.
Collocations
- physical cosmology
- observational cosmology
- theoretical cosmology
- modern cosmology
Example sentences
- "Modern cosmology is deeply intertwined with particle physics, seeking to understand the universe's earliest moments." Describing a field of study.
- "The prevailing model in cosmology is the Lambda-CDM model, which incorporates dark matter and dark energy." Referring to a specific theory.
Memory hook
Think 'COSMOS' (the universe) + '-OLOGY' (the study of). It's the study of the entire cosmos. Universe Study
When not to use
Avoid using 'cosmology' when referring to the study of individual celestial bodies or phenomena within the universe; 'astrophysics' or 'astronomy' would be more appropriate. It's not a synonym for 'space exploration' or 'alien life'.
Fun facts
- Early cosmology was often philosophical or mythological, but modern cosmology is a rigorous scientific discipline based on observation and mathematical models.
Related words
Astrophysics, Big Bang, Dark Matter, Dark Energy, Relativity
Also appears in
Our English vocabulary app: FSRS spaced repetition, 5,000+ curated words across 119 topic groups, CEFR A1 to C2. Explore your mastery with the beautiful Vocabulary World feature.