Librería Samer Atenea
Librería Aciertas (Toledo)
Kálamo Books
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Librería Kolima (Madrid)
Librería Proteo (Málaga)
What is a light year and what does it measure? Learning about a light year gives you a good picture of how big the universe is! This book contains useful information that will serve as a wonderful introduction to space science. Other than that, this book can also be used as a refresher if the subject is being discussed in school, too. Grab a copy now!