Henrietta Swan Leavitt
Henrietta Leavitt was an American astronomer who discovered the relation between the luminosity and the period of Cepheid variables. This was a vital step in measuring the distance to remote galaxies.
Henrietta Leavitt was an American astronomer who discovered the relation between the luminosity and the period of Cepheid variables. This was a vital step in measuring the distance to remote galaxies.
Identity has always been at the center of composer/pianist Gabriela Lena Frank’s music.
Undeterred by deafness and blindness, Helen Keller rose to become a major 20th century humanitarian, educator and writer. She advocated for the blind and for women’s suffrage and co-founded the American Civil Liberties Union.
Known as the founder of the Girl Scouts, Juliette Gordon Low created the largest and most successful organization for girls in the world. She is best remembered for her sheer determination and tireless efforts to promote and sustain the organization through the early part of the twentieth century.
Known as the “census taker of the sky,” Annie Jump Cannon was a brilliant astronomer that revolutionized the way scientists classify stars.