Precision Cosmology : The First Half Million Years Direct

This sounds like a deep dive into the and the Cosmic Microwave Background (CMB) . Since the first 500,000 years set the stage for everything we see today, a great feature would focus on how we use that ancient light to "weigh" the universe. Title Idea: The Universe’s First Snapshot

The CMB is a uniform 2.725 Kelvin , but the tiny fluctuations (one part in 100,000) are what grew into galaxies. Visual Hook Precision cosmology : the first half million years

A "timeline of transparency"—showing the transition from a glowing orange wall of plasma to the first streaks of clear light, eventually fading into the "Dark Ages" before the first stars turned on. This sounds like a deep dive into the