Video Description

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: https://youtube.com/playlist?list=PLaLvSxPpI1c0jjUwkU2ZFXdRX0J31ZCfY&si=vNVXc8AFND1Uv4f7 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/en-ca/perimeter-institute-wallpaper-series Follow the edge of theoretical physics on our social media: https://www.facebook.com/pioutreach https://x.com/perimeter https://www.instagram.com/perimeterinstitute https://www.linkedin.com/company/perimeter-institute Follow our host "AstroKatie" Katie Mack: https://twitter.com/AstroKatie https://www.instagram.com/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