![](http://www.alamy.com/thumbs/6/921E5D72-4B0B-4507-ABA2-F7AF3B4D09E4/J3T199.jpg)
Kepler Mars retrograde
Size: 1657px × 1507px
Photo credit: © The History Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ancient, art, book, bygone, copy, cover, drawing, editorial, historic, history, illustration, line, map, news, painting, photo, photograph, photography, space, stock, textbook, vintage