cosmic microwave background
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(cosmology) the faint glow of radiation spreading through the universe, believed to be residual radiation from the Big Bang
- The cosmic microwave background is remarkably uniform across the sky.
- CMB helps us learn about the universe's composition and evolution.
- The cosmic microwave background is the afterglow of the Big Bang.
- Scientists use satellites like the Planck Observatory to map CMB.
- Studying fluctuations in CMB reveals insights into cosmic structure formation.