A tribute to American astronomer Henrietta Swan Leavitt (July 4, 1868 – December 12, 1921). While working at Harvard College Observatory, Leavitt discovered the period-luminosity relationship for Cepheids.
Poem fragments from an old magazine (Graham’s Illustrated Magazine of Literature, 1843) glued onto old artist’s conception of the lunar landscape (from Recreations in Astronomy by H. D. Warren D. D., 1879).
This year marks the 45th anniversary of the Apollo 11 mission. Apollo 11 launched July 16, 1969 and landed on the Moon on July 20. Pictured here the Saturn V rocket that launched Apollo 11 to the Moon and a cut-out image of Aldrin on the Moon. (Images credit: NASA)