Astronomer biographies
Explore kid-friendly life stories connected to astronomer.
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Stories about astronomer
Al-Khwarizmi
Helping create algebra and inspiring the word “algorithm.”
Annie Jump Cannon
Creating a simple system to classify stars that astronomers still use today
Carl Sagan
Helping people understand space and science through books, TV shows, and exciting ideas.
Cecilia Payne-Gaposchkin
Discovering what stars are made of
Edwin Hubble
Discovering that the universe is much bigger than we thought and that it is expanding.
Galileo Galilei
Helping people understand the sky by improving the telescope and studying space.
Georges Lemaître
He helped explain that the universe is expanding and began with the Big Bang.
Henrietta Swan Leavitt
Discovering a rule about special stars that helped scientists measure distances in space and understand the size of the universe.
Isaac Newton
Discovering the laws of motion and gravity that help explain how the world moves
Johannes Kepler
Discovering the laws that explain how planets move around the Sun
Nicolaus Copernicus
He proposed that Earth and the other planets move around the Sun.
Omar Khayyam
A famous Persian poet and a brilliant mathematician who helped improve calendars and algebra
Tycho Brahe
Making the most accurate sky measurements before telescopes and helping change how people understood the universe
Vera Rubin
Discovering strong evidence for dark matter by studying how galaxies spin