The most famous scientist you've never heard of

You know Newton because of gravity. You know Einstein because of relativity. You may even know Hubble because the Universe expands. But do you know who first discovered the composition of the stars? Probably not.

With only 25 years, Cecilia Payne-Gaposchkin discovered it all by herself (or worse, against the beliefs of many of her colleagues and superiors). Her work proved that they were mostly composed of Hydrogen and Helium (against the prevalent opinion of the time). Her results in 1922 were therefore obscured until Eddington, through a different route, "discovered" the same - and got all the glory (even though he did try and credit her).

NOT Cecilia.

The tip of our hat is touched today for this extraordinary lady. Cheers!