EPISODE · Aug 9, 2025 · 22 MIN
The Great Astronomers: Henrietta Swan Leavitt, the woman who measured the universe
from The AstroGuy Podcast · host Wayne Zuhl
Send us Fan MailIn this installment of the Great Astronomers Series, we dive into the life and legacy of Henrietta Swan Leavitt, one of astronomy’s most quietly revolutionary figures. From painstakingly measuring the brightness of stars on photographic plates to uncovering the relationship that would become the foundation for modern cosmology, Leavitt’s work changed our understanding of the universe.Learn how her discovery of the period-luminosity relationship in Cepheid variable stars enabled astronomers like Edwin Hubble to measure the vast distances between galaxies and prove that the universe is expanding.In the episode, we go over:· Henrietta Leavitt’s early life and education· Her work as a Harvard “computer”· Discovering the Cepheid variable relationship· How her data made cosmic distance measurements possible· Her lasting impact on astronomy and why she deserves wider recognitionWhat did you think of Henrietta Leavitt’s story? Do you have a favorite “Great Astronomer” you’d like featured next? Drop a comment below, and don’t forget to like, subscribe, and share if you enjoyed the episode.Carpe Noctem, Seize the Night!Links:Feel free to buy us a cup of coffee or two! We really appreciate it! https://tinyurl.com/AstroGuyCoffeeOur Facebook group page: https://www.facebook.com/groups/astroguypodCranford TV-35: https://www.cranfordnj.org/tv-35Clark TV-36: https://www.ourclark.com/194/Clark-News---Our-Clark-MediaThe Full Episode Guide of DSO’s sorted by Catalog Name: http://tinyurl.com/AGFullGuideCharles Messier episode: https://youtu.be/3JvAEj29OBo?si=P7E2wCvIP9ZN00ZFWilliam Herschel episode: https://youtu.be/1sCFTQf03Wk?si=v5FNwCEf6YIRUWiUCaroline Herschel episode: https://youtu.be/ZVrIHoOVmvY?si=jTcGgdBVkMCn5Rv7Affiliate LinksHere's a great resource for teachers to teach about Henrietta Leavitt: https://justaddh2oschool.com/2025/08/11/meet-henrietta-swan-leavitt-the-unsung-astronomer-who-measured-the-universe-great-astronomers-series/High Point Scientific: https://www.highpointscientific.com/?rfsn=7714880.bb6129Amazon: https://amzn.to/4gFQmOGThe Glass Universe: https://amzn.to/45rsR6WCreditsLast and First Lightby Scott Buckley The Long Darkby Scott Buckley Music promoted by https://www.chosic.com/free-music/all/ Creative Commons CC BY 4.0 Support the show
What this episode covers
Send us Fan MailIn this installment of the Great Astronomers Series, we dive into the life and legacy of Henrietta Swan Leavitt, one of astronomy’s most quietly revolutionary figures. From painstakingly measuring the brightness of stars on photographic plates to uncovering the relationship that would become the foundation for modern cosmology, Leavitt’s work changed our understanding of the universe.Learn how her discovery of the period-luminosity relationship in Cepheid variable stars enabled astronomers like Edwin Hubble to measure the vast distances between galaxies and prove that the universe is expanding.In the episode, we go over:· Henrietta Leavitt’s early life and education· Her work as a Harvard “computer”· Discovering the Cepheid variable relationship· How her data made cosmic distance measurements possible· Her lasting impact on astronomy and why she deserves wider recognitionWhat did you think of Henrietta Leavitt’s story? Do you have a favorite “Great Astronomer” you’d like featured next? Drop a comment below, and don’t forget to like, subscribe, and share if you enjoyed the episode.Carpe Noctem, Seize the Night!Links:Feel free to buy us a cup of coffee or two! We really appreciate it! https://tinyurl.com/AstroGuyCoffeeOur Facebook group page: https://www.facebook.com/groups/astroguypodCranford TV-35: https://www.cranfordnj.org/tv-35Clark TV-36: https://www.ourclark.com/194/Clark-News---Our-Clark-MediaThe Full Episode Guide of DSO’s sorted by Catalog Name: http://tinyurl.com/AGFullGuideCharles Messier episode: https://youtu.be/3JvAEj29OBo?si=P7E2wCvIP9ZN00ZFWilliam Herschel episode: https://youtu.be/1sCFTQf03Wk?si=v5FNwCEf6YIRUWiUCaroline Herschel episode: https://youtu.be/ZVrIHoOVmvY?si=jTcGgdBVkMCn5Rv7Affiliate LinksHere's a great resource for teachers to teach about Henrietta Leavitt: https://justaddh2oschool.com/2025/08/11/meet-henrietta-swan-leavitt-the-unsung-astronomer-who-measured-the-universe-great-astronomers-series/High Point Scientific: https://www.highpointscientific.com/?rfsn=7714880.bb6129Amazon: https://amzn.to/4gFQmOGThe Glass Universe: https://amzn.to/45rsR6WCreditsLast and First Lightby Scott Buckley The Long Darkby Scott Buckley Music promoted by https://www.chosic.com/free-music/all/ Creative Commons CC BY 4.0 Support the show
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The Great Astronomers: Henrietta Swan Leavitt, the woman who measured the universe
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