🧵 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
Posts
🕳️ 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
🧶 Cosmic Strings, Textures, And The First Tiny Ripples We Saw In The Big Bang’s Light
How “cracks” in space and time could have shaped the universe—and what clues we should look for in the sky
🌟 A Superfast Zone Revealed Near A Quasar’s Heart
A very broad helium glow in PG 1138+222 points to an extreme inner region close to its black hole