Season
Season 2025 Episode
- Season 2015 What Planet is Super Mario World?
- Season 2015 Is It Irrational to Believe in Aliens?
- Season 2015 How Do You Measure the Size of the Universe?
- Season 2015 Should We Colonize Venus Instead of Mars?
- Season 2015 What Will Destroy Planet Earth?
- Season 2015 Can A Starfox Barrel Roll Work In Space?
- Season 2015 Cosmic Microwave Background Explained
- Season 2015 Is the Moon in Majora’s Mask a Black Hole?
- Season 2015 Could You Fart Your Way to the Moon?
- Season 2015 How to Weigh a Fart
- Season 2015 Could NASA Start the Zombie Apocalypse?
- Season 2015 Are Space and Time An Illusion?
- Season 2015 What's the Most Realistic Artificial Gravity in Sci-Fi?
- Season 2015 Should the First Mars Mission Be All Women?
- Season 2015 9 NASA Technologies Shaping YOUR Future
- Season 2015 The Real Meaning of E=mc²
- Season 2015 Habitable Exoplanets Debunked!
- Season 2015 Is Gravity An Illusion?
- Season 2015 Challenge: What Happens to a Helium Balloon in Freefall?
- Season 2015 How to Signal Aliens
- Season 2015 The Calendar, Australia & White Christmas
- Season 2015 Can a Circle Be a Straight Line?
- Season 2015 Curvature Demonstrated + Comments
- Season 2015 The Leap Second Explained
- Season 2015 Can You Trust Your Eyes in Spacetime?
- Season 2015 SPECIAL ANNOUNCEMENT + Flat Spacetime Geometry Comments
- Season 2015 General Relativity & Curved Spacetime Explained!
- Season 2015 What Physics Teachers Get Wrong About Tides!
- Season 2015 Challenge: Which Particle Wins This Race?
- Season 2015 Do Events Inside Black Holes Happen?
- Season 2015 Watch THIS! (New Host + Challenge Winners)
- Season 2015 Does Dark Matter BREAK Physics?
- Season 2015 What Happens At The Edge Of The Universe?
- Season 2015 The Speed of Light is NOT About Light
- Season 2015 5 REAL Possibilities for Interstellar Travel
- Season 2015 Have Gravitational Waves Been Discovered?!?
- Season 2015 Is The Alcubierre Warp Drive Possible?
- Season 2015 Why Haven't We Found Alien Life?
- Season 2015 Challenge: Can you save Earth from a Killer Asteroid?
- Season 2015 5 Ways to Stop a Killer Asteroid
- Season 2015 100 Years of Relativity + Challenge Winners!
- Season 2015 How to Build a Black Hole
- Season 2015 The Higgs Mechanism Explained
PBS Space Time - Season 2015 Episode 7 Cosmic Microwave Background Explained
10.00 48 minutes HAS SPACE ALWAYS BEEN BLACK? As long as we've been around, YES. But the universe gets much more exciting, AND much BRIGHTER, as we start winding our clocks back to the early days of the universe. Near the beginning of the universe, when space was rapidly expanding, that dark night sky we know so well as actually…ORANGE! But why? Did the lights just go out, or did something more spectacular happen?
