Annie Jump Cannon, an astronomer who co-invented a stellar classification system that is still in use today. (Harvard University Library) - from our story 'The Harvard Computers – The Forgotten Female Scientists Who Mapped Space'

Annie Jump Cannon, an astronomer who co-invented a stellar classification system that is still in use today. (Harvard University Library)

Annie Jump Cannon, an astronomer who co-invented a stellar classification system that is still in use today. (Harvard University Library)

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