There have always been courageous women who accomplished extraordinary feats in order to advance our understanding of the universe.

The Royal Astronomical Society will be highlighting one woman in STEM (science, technology, engineering and mathematics) every day until #InternationalWomensDay2019.

The tweets will be in rough chronological order, tracking the history of women in STEM for thousands of years. Follow us on @RAS_Women.

March,  April,  May,  June,  July,  August,  September,  October.