This course explores the origin, evolution, and large-scale structure of galaxies across the observable universe. Learners will examine how galaxies form and evolve, distinguish between normal and active galaxies, and investigate the evidence for supermassive black holes at the centres of galaxies. The course also explains how astronomers use observations across the electromagnetic spectrum, gravitational lensing, and gravitational waves to study some of the most energetic phenomena in the cosmos.

Extra-Galactic Astronomy

Extra-Galactic Astronomy
This course is part of Astronomy and Cosmology: Exploring the Universe Specialization
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What you'll learn
A review of the structures found in the wider universe, beyond the edge of our Milky Way galaxy, from galaxies, galaxy clusters to the cosmic web.
A framework which will allow better understanding of the science of astronomy encountered and to place into context the importance of new discoveries
To help you take full advantage of online resources such as YouTube astronomy channels, audiobooks, and astronomy books aimed at the general public.
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August 2026
22 assignments
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Status: PreviewUniversity of Cambridge
Status: PreviewUniversity of Cambridge
Status: PreviewRutgers the State University of New Jersey
Status: PreviewCaltech
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