Exploring Galaxies

An 11-part course with Astronomic

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Course Overview

Take a road trip through the cosmos and explore galaxies! Astrophysicist Sebastian Pines explains the fascinating science behind these gravitationally bound systems of stars, dust, gas, and dark matter. Learn about the different contents, types, and shapes of galaxies, including that of our very own Milky Way. Then, go on to explore the mysterious black holes that lie at the heart of large galaxies and the superclusters of galaxies that congregate throughout the universe.


  • Total Time 1 hr, 39 min
  • Lessons 11
  • Exercises 42
  • 56 CQ

11 Lessons in This Course

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