Cosmic Microwave Background (CMB) Explained | Cosmology 101 Episode 2

Опубликовано: 19 Апрель 2026
на канале: Perimeter Institute for Theoretical Physics
44,667
1k

In this episode of Cosmology 101, we journey through time by exploring the cosmic microwave background (CMB), the faint glow from the Big Bang.

The CMB shows us the universe as it was 13.8 billion years ago, revealing secrets about its origins and composition. Discover how this ancient light provides insights into the early universe and helps us understand the cosmos we see today.

Watch Cosmology101 in French here:    • Cosmologie 101: Explorez l'évolution de l'...  

Join Katie Mack, Perimeter Institute’s Hawking Chair in Cosmology and Science Communication, on an incredible journey through the cosmos in our new series, Cosmology 101.

Sign up for our newsletter and download exclusive cosmology posters at: https://landing.perimeterinstitute.ca...

Follow the edge of theoretical physics on our social media:
  / pioutreach  
https://x.com/perimeter
  / perimeterinstitute  
  / perimeter-institute  

Follow our host "AstroKatie" Katie Mack:
  / astrokatie  
  / astrokatiemack  

Perimeter Institute (charitable registration number 88981 4323 RR0001) is the world’s largest independent research hub devoted to theoretical physics, created to foster breakthroughs in the fundamental understanding of our universe, from the smallest particles to the entire cosmos. Be part of the equation: https://perimeterinstitute.ca/donate