O'Dell, Kathryn <br/><br/>
The science of darkness / 
Kathryn O'Dell 
 - New York :  Cambridge University Press,  2013 
 - 28 p. :  col. ill. ;  21 cm. 
 - Cambridge discovery interactive readers Level A2+ .
 - Cambridge discovery interactive readers .
<br/><br/><label>ISBN: </label>9781107654938 (pbk. : alk. paper) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Dark energy (Astronomy)--Juvenile literature<br/>Dark matter (Astronomy)--Juvenile literature<br/>Night--Juvenile literature<br/>English language--Textbooks for foreign speakers<br/>Readers (Elementary)