The National Space Society vision is people living and working in space

Ad Astra Volume 25 Number 2

Ad Astra

The magazine of the
National Space Society

Volume 25, Number 2
Summer 2013

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Cover image courtesy NASA.

Featured Articles:

14
THE UTILITY OF THE INTERNATIONAL SPACE STATION
By Marianne Dyson

20
LIVING LARGE ON MARS, or REQUIEM FOR A RED PLANET?
The chances for life on Mars
by John Kross

26
ROOM IN A CAN: BEAM COMES TO ISS
The Bigelow Expandable Activity Module
By Clifford R. McMurray

30
WELCOME TO ISDC 2013
By Luisa Fernanda Zambrano-Marin, Dave Dressler, and Nate McIntyre

34
50 YEARS OF WOMEN IN SPACE
By Claire Stephens McMurray and Clifford R. McMurray

38
THE GRAIL MISSION EXPLORES THE MOON CRUST TO CORE
By Sami Asmar

42
LONG-TERM THINKING: THE TENNESSEE VALLEY INTERSTELLAR WORKSHOP
By Bart Leahy, Les Johnson, and Robert Kennedy

44
NATIONAL SPACE SOCIETY OFFICER AND DIRECTOR RECEIVES PRESTIGIOUS NATIONAL SPACE EDUCATOR AWARD — TWICE!
Honoring Lynne F. Zielinski

46
A BOLD NEW TELESCOPE MISSION LOOKS FOR ASTEROIDS — BEFORE THEY FIND US
The Sentinel Mission of the B612 Foundation
By Ed Lu

Departments:

9
LETTER FROM THE PUBLISHER
By Pat Silver

10
NSS ANNOUNCEMENTS
What's Happening at NSS?

11
NSS CORRESPONDENCE
NSS Kickstarts Our Space Future
By Jay Wittner

12
LETTER FROM EXECUTIVE COMMITTEE
Victory: Humanity Takes a Major Step Towards the NSS Vision of a Hopeful Future
By Mark Hopkins

48
BOOKS
The Cosmonaut Who Couldn't Stop Smiling: The Life and Legend of Yuri Gagarin, by Andrew L. Jenks
Reviewed by Clifford R. McMurray
Forever Young: A Life of Adventure in Air and Space, by John W. Young with James R. Hansen
Reviewed by Steve Adamczyk

50
CHAPTER LISTINGS

55
SIGNING OFF
Saturn's North Polar Hexagon

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