Estimating the Number of Atoms in the Observable Universe

YouTube·Astronomy

Explore a simple method for estimating the number of atoms in the observable universe in this 21-minute video. Learn how to calculate the number of atoms in a typical star, estimate the number of stars in a typical galaxy, and determine the number of galaxies in the observable universe. Follow along as the video breaks down the process into manageable steps, combining calculations to arrive at a final estimate. Gain insights into the scale of the cosmos and improve your understanding of astronomical concepts through this engaging Physics Explained presentation.