Credential type: admission or placement test · verified on the issuer's site September 19, 2026 issuer page
The Astronomy certification examination is administered by DSST to evaluate thorough understanding across 8 distinct content domains. Candidates must demonstrate proficiency in astrophysics, celestial systems, the science of light, planetary systems, the Sun and stars, galaxies, and the overall structure and evolution of the universe during the computer-based assessment containing 100 multiple-choice questions.
Students seeking college credit for astronomy knowledge, as well as military personnel and civilian candidates preparing to demonstrate proficiency in celestial and planetary sciences during testing.
Review core concepts across all 8 content domains with the 100 multiple-choice questions format in mind. Study light science, astrophysics, and planetary systems in great detail using official materials. Practice answering sample questions to effectively manage your time within the 120 minutes allowed for the test.
This initial domain covers the primary concepts, basic principles, and historical background underlying the broad science of astronomy for all entering candidates taking the certification examination today to ensure thorough mastery of fundamental knowledge.
This domain focuses extensively on the physical processes, stellar mechanics, and physical laws governing various astronomical objects located throughout the vast universe and space environments during the examination process for all candidates.
This area explores the organization, complex motion, coordinate systems, and gravitational interactions occurring directly within various celestial systems throughout the local space environment and beyond for all test takers seeking certification.
This segment examines electromagnetic radiation, advanced spectroscopy, and how visible and invisible light effectively transmits vital information from distant stars and galaxies to researchers during the computer test environment.
This section provides details concerning our solar system, newly discovered exoplanets, other planetary systems, and the complex formation processes governing planets in our galaxy for candidates seeking passing scores today.
This subject analyzes the physical nature, internal structure, active solar phenomena, and evolutionary stages of the Sun along with other distant stars located across the universe during the thorough evaluation session.
This domain surveys the major types, structural classifications, and spatial distribution of galaxies alongside surrounding interstellar matter located throughout the observable cosmos for students pursuing college credit through thorough academic testing.
This final content area reviews modern cosmology alongside the large-scale contents, overall physical structure, and continuous evolution of the entire universe over cosmic time periods during the exam session and testing experience.
Arrive well prepared for your computer-based multiple-choice test session. Manage your pacing carefully to successfully answer all 100 questions within the 120 minutes testing limit.
The examination consists of exactly 100 multiple-choice questions delivered in a computer-based format, carefully testing your knowledge across 8 distinct subject domains during the test session to evaluate overall competence.
The official passing score required to earn college credit for this specific exam is set at 400 points, which candidates must achieve successfully during their evaluation.
The total exam duration is 120 minutes, giving you adequate time to complete all multiple-choice questions before the official testing timer expires completely on test day.
The standard exam price is $85 for regular civilian candidates who register for the test, while eligible military personnel can take the examination completely free via DANTES administration services.
This page was built using official DSST documentation and exam guides to provide precise domain weights, pricing, duration, and question counts for candidates.