Ordinary matter makes up just 4% of the observable universe. 🤯 What’s the rest made out of? Drop your guesses in the comments, and watch the video to learn the answer! The full episode, Astro-Investigates: The Big Bang, is out on YouTube now: https://youtu.be/qsoLni0I5_U | NASA Universe

The universe is far larger than we imagine. Scientists estimate that the observable universe contains over 200 galaxies, each holding billions of stars, planets, and possibly life itself. In this video, we explore how astronomers discovered these galaxies and what their existence tells us about the true scale of the universe. Does knowing this change how you see our place in the cosmos? Share your thoughts in the comments. #Universe #Galaxies #SpaceScience #Astronomy #Cosmology #ScienceExplained