Henrietta Swan Leavitt (1868-1921)
Henrietta Swan Leavitt (1868-1921) is a character in 0 books.
Miss Leavitt's Stars: The Untold Story of the Woman Who Discovered How to Measure the Universe
ByGeorge Johnson
2005 • 3 Readers • 188 pages
Henrietta Swan Leavitt (1868-1921) is a character in 0 books.
2005 • 3 Readers • 188 pages