Illustration of Aristarchus of Samos demonstrating how he measured the distance to the Sun and Moon, showing a geometric triangle between the Sun, Earth, and Moon, with the scholar holding a measuring instrument under a starry sky and an ancient Greek temple in the background.
Discoveries & Inventions

How Aristarchus Measured the Distance to the Sun and Moon

Imagine standing on a Greek island over 2,200 years ago, looking at the sky without a telescope, a computer, or […]