This beautifully illustrated biography of astronomer Edwin Hubble explores the curiosity that inspired his groundbreaking discoveries and the many questions he asked about our universe. This book invites children to wonder alongside him: How many stars are in the sky? How did the universe begin? Where did it come from?

A New York Public Library Best Book for Kids of the Year
A Marginalian (formerly Brain Pickings) Loveliest Children's Book of the Year
A Bank Street College of Education Best Book of the Year, of Outstanding Merit
An Air & Space Magazine Best Children's Book of the Year
A EUREKA! Nonfiction Children's Book Honor Award Winner
Nominated for a Beehive Award for Children's Informational Books

This is the story of Edwin Hubble, a boy fascinated by the stars who overcame many obstacles to pursue his dream of becoming an astronomer. Through careful observation, perseverance, and the insights of great mathematicians, he helped confirm two discoveries that changed our understanding of the cosmos forever: that there are galaxies beyond our own Milky Way, and that the universe is expanding.

Told with warmth and wonder, this inspiring picture book biography celebrates scientific curiosity, discovery, and the power of asking big questions. Hubble's message was to find peace in the vastness of the mystery surrounding us and to remain curious about the world beyond our reach.