How Heavy Is a Teaspoon of Neutron Star? Video Watch time under 1 minute November 11, 2025 Image How heavy is a teaspoon of neutron star? 🥄💥 Astrophysicist Erika Hamden explains how this stellar core remnant weighs more than a mountain because it’s packed with neutrons under crushing gravity. It’s the densest matter in the universe before becoming a black hole. On Earth? It would instantly explode. This project is part of IF/THEN®, an initiative of Lyda Hill Philanthropies. Topics Space Sciences Share