Before they even had the right to vote, a
group of remarkable women were employed
by Harvard College Observatory as ‘human
computers’. In the glass photographic
plates made by their male counterparts,
the women made extraordinary discoveries
about the night sky: they discerned what
stars were made of and measured distances
across space using starlight.
The author of Longitude, Galileo’s Daughter
and The Planets illuminates the hidden
history of these incredible women
who changed the burgeoning field of
astronomy, our understanding of the
stars and our place in the universe.