This fascinating book is part of the Earth and Space Sciences Readers for students in Upper Primary School.In this book, you will read about some astronomers who have made a big impact in the field of astronomy - the study of the universe. Contents:Astronomers:Looking Up, Looking ForwardHypatia of AlexandriaNicholas CopernicusGalileo GalileiSir Isaac NewtonCarl SaganMargaret GellerAstronomer: Sandra FaberAppendices