Coursera · Chris Impey, University of Arizona
Astronomy: Exploring Time and Space
A broad astronomy introduction examining the universe, astronomical observation, and the evidence used to study distant objects.
Beginner10+ hoursCertificate
Astronomy courses and tutorials
Explore astronomy introductions for the universe, observation, and scientific interpretation, with advice on distinguishing a broad survey from technical astrophysics.
1 learning resource in this collection
About Astronomy
Astronomy asks how observations reveal the properties and history of objects far beyond direct reach. An introductory survey provides orientation across scales. It is useful to understand how an observation supports a conclusion, not only remember striking facts.
Choose a useful starting point
Check the mathematical demands and the date of examples. A broad course can be accessible without preparing you for advanced astrophysics. Where discoveries have changed, use current scientific sources to supplement the foundational explanation.
Build on the lessons
Choose one astronomical claim and describe the observation and reasoning behind it. State which part is measured directly and which depends on a model.