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Overview
Cosmologist work studies the universe as a whole, including its origin, evolution and possible future, using theory, observation, instruments and data from galaxies and celestial objects.
In job descriptions, look for astrophysics, observational data, telescopes, modelling, statistics, scientific programming, research papers, instrument data, collaboration with astronomy teams and communication of findings.
Explore this occupation
Open in Job ExplorerWhat the work can involve
Cosmologist work is research-centred and usually connected to universities, observatories or scientific institutes. The role studies the universe as a whole through theoretical models, telescope observations, instrument data, simulations and evidence from galaxies, stars, black holes and other celestial objects.
Skills and specializations
Useful strengths include astrophysics, mathematical modelling, statistics, scientific programming, observational data handling, literature review and research writing. Specialization may lean toward theoretical cosmology, observational surveys, data-intensive analysis, early-universe questions or links between cosmology and particle physics.
Salary context
Salary context depends on research responsibility, grant involvement, publication record, supervision duties, technical data work and the type of institution. Compare roles by whether they are doctoral, postdoctoral, permanent research, teaching-linked or project-funded positions with instrument or survey responsibilities.
Career paths
Development can move through doctoral research, postdoctoral projects, research fellowships, teaching roles, data-science-adjacent work or scientific software positions. Progress is usually shown through publications, conference contributions, reproducible analysis, collaboration on surveys and the ability to explain complex evidence clearly.
Good to know
Vacancies may use astronomy, astrophysics or data science titles instead of cosmologist. Read the research topic, required methods, instruments, programming languages, publication expectations, supervision duties and funding period to understand whether the work truly focuses on cosmology.
Editorial note
This guide is editorial career context. It is not official labour-market statistics or role-specific salary data.
Map overview
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O*NET relationships
See occupations connected to this ESCO occupation in the official O*NET–ESCO mapping. The relationship type comes from the source and is not a ranking or recommendation.
O*NET relationships: 1
Astronomers
19-2011.00
Close relationship
The occupations are closely related, but the official mapping does not treat them as exact equivalents.
Open in O*NETSource and method
These relationships come from the official European Commission O*NET–ESCO crosswalk.
Relationship direction: O*NET occupation to ESCO occupation.
Several O*NET occupations can point to the same ESCO occupation, and one O*NET occupation can point to several ESCO occupations.
AltoTrail preserves the source relationship type. The order is technical and does not show which occupation is best, most relevant or recommended.
AltoTrail validates and presents the source relationships without adding ranking or recommendation semantics.
Alternative labels
Occupation group
Physicists and astronomers (2111)
Source facts
| ESCO URI | http://data.europa.eu/esco/occupation/bc659adc-f42c-4ef6-89fe-fd030033f446 |
|---|---|
| ESCO code | 2111.2 |
| ISCO group | 2111 |
| Concept type | Occupation |