While Einstein is now a household name — and an iconic figure in science — it took the work of Sir Arthur Eddington to really bring him into the public consciousness. With one eclipse, he was able to prove Einstein’s theory — and spread proof of it to the masses. “On the 29th of May, 1919 the moon eclipsed the sun to allow a thin ray of light from the Hyades star cluster to fall into Sir Arthur Eddington’s telescopes,” the video explains. “Through his observations, he proved that light did not travel on straight lines around the sun, but rather on curved ones that deflected light. Eddington’s announcement made headlines, catapulting Einstein’s fame in the English-speaking world.”

Waiting out rain and difficult conditions, Eddington was determined to make his predicted observations a reality. You can see the video here:

The Eclipse that made Einstein Famous from Massive Science on Vimeo.

Once a figure becomes cemented in history — and in science — it’s easy to forget the journey that they took to get there. But science is ever-evolving and new theories have to be tested and proven long before they enter textbooks. It’s amazing to think that one man’s observations helped shape the way we view Einstein today.