Tod Lauer speaks about measuring the Cosmic Optical Background,
Channel: NOIRLabAstro
Date: 2021-04-23

Tod Lauer speaks about measuring the Cosmic Optical Background, which is the combined light of everything in the Universe beyond the Milky Way. The observations show that the background light of the Universe is twice as bright as predicted — and nobody knows why.

More information and download options: http://noirlab.edu/public/videos/early_universe_loop/

Credit:
NOIRLab/NSF/AURA