Galaxy Mapper: The Luminous Discoveries of Astrophysicist Hlne Courtois
By (Author) Allie Summers
Illustrated by Sian James
Candlewick Press,U.S.
MIT Kids Press
1st December 2025
United States
Children
Non Fiction
Childrens / Teenage general interest: Science and technology
Childrens / Teenage general interest: Biography and autobiography
Childrens / Teenage general interest: Girls and women
Hardback
48
Width 214mm, Height 260mm
567g
Introducing our luminous address in the universeand the determined woman scientist who mapped it with her team.
Growing up in a small French village, Hlne Courtois had big questions about the world around her. Avidly, she observed the trails, roads, and water pathways traversing planet Earth; but her mind always wandered higher, toward the night sky. What would a map of out there, beyond the moon, look like The question traveled with her to university, where curious Hlneoften the only woman in her science classeslearned to map the compositions of galaxies. Numbers swam with the stars in her brain, and after years of wonder and experimentation, Hlne and her team make a dazzling discoverya supercluster of galaxies they name Laniakea, home to our very own Milky Way. With fascinating back matter, illustrations that shine on the page, and a lyrical text written in consultation with astrophysicist Hlne Courtoiswho continues to illuminate our view of the cosmic landscapethis portrait of a contemporary female scientist will light up young minds and inspire future sky gazers and galaxy mappers to look up and dream large.
In this appealing childhood-to-adulthood biography of Hlne Courtois, readers experience the wonders of the natural world and the cosmos.
School Library Journal
Allie Summers is the author of the picture book Gorilla Gardeners, illustrated by Lidia Steiner. She is fascinated by the fact that most of the elements in our human bodies were formed in stars billions of years ago. When she is not writing, Allie Summers can be found outside: running, surfing, foraging, climbing, roller-skating, or stargazing. She lives with her family in the Laniakea supercluster, on a small blue planet called Earth, in a town known as San Francisco.
Sian James is an illustrator and an early medieval archaeologist. Born and raised in Hong Kong, she has been drawing ever since she was able to pick up a pen. When she is not creating art, she loves reading fantasy novels, volunteering in museums, and drinking too much tea. Sian James lives in Cambridge, England, with her husband and cats.