Seeing red.  [electronic resource] 

 -  Nature  Nov 2011 
 - 446 p.  digital 
<br/><br/> Publication Type: Editorial; Comment 
<br/><br/><label>ISSN: </label>1476-4687 
<br/><br/><label>Standard No.: </label>10.1038/479446a  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mars<br/>Photography--history