Galaxies and cosmology · A guided course

The history of the universe

Reconstruct cosmic time from the evidence that remains

Trace expansion, early nuclei, relic radiation, and the first galaxies through six quantitative investigations of cosmic history and its limits.

6 lessons60 min of lessons + 8 min challengeIntermediate to Advanced

Suggested preparation is listed in the course · Start whenever you’re ready

NASA/Peter M. Baltzell · Image source ↗

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6 lessons

Each lesson builds on the last. Read the story, explore the sources, and check your understanding.

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