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The Planetary Report
Mars Analogs On the Cover: Though Chile’s Atacama Desert is more thoroughly etched by past water than is the surface of Mars, it compares strikingly well with images from Mars at a variety of scales. This image of an intermountain drainage basin looks superficially similar to the walls and floor of Mars’ Valles Marineris.
Jacek Wierzchos, University of Llieda (top) and ESA/DLR/FU Berlin (G. Neukum)

Volume 25, number 5
September/October 2005

Mars Analogs

Download this issue as a PDF
(Planetary Society members only)

Features

6 Dry Earth, Wet Mars: Troy Hudson describes his experiences with a team of scientists, led of Society Board member Chris McKay, on an expedition to Chile's Atacama Desert to learn about Mars exploration.

12 The Pioneer Anomaly: A Deep Space Mystery: Bill Nye explains this complicated conundrum in terms that everyone can understand.

14 Out of This World Books: Just in time for the holiday season, we have selected seven new space-related books to share with you.

Departments

3 Members' Dialogue Saving Voyager; human spaceflight 

4 We Make it Happen! The end of Cosmos 1 and the beginning of a new chapter

18 World Watch The space shuttle returns to flight; NASA budget; ExoMars

19 Society News Upcoming events, including the 25th Anniversary Awards Dinner 

20 Q&A Why does Titan have an atmosphere? Why isn't Io icy?

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