The Lyman-alpha Forest

Reading the Universe and Galaxies in Shadows

Light from a distant quasar crosses the cosmic web before it reaches us. Diffuse hydrogen along the way absorbs the light at different wavelengths; together, these absorption features form what we call the Lyman-alpha forest.

This 20-minute public talk is built as a live web page. It reads that light through one simulated universe.

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→ or space next · ← back · F full screen; on a touch screen, tap to go on. About 29 MB to load; best on a laptop or desktop with a keyboard.