Tag: Henrietta Leavitt. (Sourced)

PLACED (File photo)Letter Editorial Top 1 Exploring photos with the Niagara-on-the-Lake Museum.Letter to the editor Supplied photo.Police lights. (Image labelled for reuse.)

Dr. Brown: Henrietta Leavitt and the distance to stars

Dr. William Brown is a professor of neurology at McMaster University and co-founder of the Infohealth series held on the second Wednesday of each...

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HomeTagsHenrietta Leavitt. (Sourced)