🌌 COBE, Tiny Ripples, And A Big Test For Inflation
Linking the first detailed maps of the cosmic microwave background to competing ideas about how the universe began
🌌 Did Ripples In Spacetime Shape The Oldest Light In The Universe?
A clear guide to how the cosmic microwave background can test ideas about the universe’s first instant of inflation
🧵 Cosmic Strings vs. COBE: A Simple Way To Read The Universe’s First Ripples
A back-of-the-envelope model turns tiny CMB temperature bumps into a test for cosmic strings
🕳️ When Black Holes Push Back: A Surprising Hint Of Antigravity
Quantum ripples around a black hole may create a tiny repulsive zone—and even hint at wormholes
🌊 Cosmic Ripples From Popping Bubbles: A Simple Trick To Model Gravitational Waves From The Early Universe
A clever “envelope” method shows how countless tiny bubbles could have filled the young universe with gravitational waves