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Ad Astra Volume 22 Number 4

Ad Astra

The magazine of the
National Space Society

Volume 22, Number 4
Winter 2010

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Back Issue Index

Cover image courtesy NASA.

Featured Articles:

14
ASTEROIDS AND ELSEWHERE: GETTING THERE BY FLEXIBLE PATH
By John F. Kross

20
PLANETARY PROTECTION: CONTAMINATE OR CONSERVE?
The case for protecting the space environment and ensuring its future sustainability
by Mark Williamson

26
REDEFINING EXPLORATION: THE FUTURE UTILIZATION OF THE INTERNATIONAL SPACE STATION
By Kelly Melone

32
CONCERNING CONSTELLATION'S CANCELLATION, CONGRESS, AND CAMELS
By Gregory H. Allison

36
NSS HIGHLIGHTS COLLABORATION WITH INTERNATIONAL COMPETITIONS
NASA/NSS Space Settlement Contest Attracts Over 1,000 Students
Solar Power Satellite Design Competition
The Jim Baen Memorial Writing Contest
International Space Settlement Design Competition
Pete Conrad Spirit of Innovation Award Program
Bruce M. Clark, Jr., Award Inspires Students
An Update for NSS Space Ambassadors Applicants

43
SUMMARY OF S. 3729, THE NASA AUTHORIZATION ACT OF 2010

44
DESIGNING A DREAM
Creating the patch artwork for space missions
By Tim Gagnon

46
THE REALITY OF A SPACE SETTLEMENT
By Ed McCullough

Departments:

8
LETTER FROM HEADQUARTERS
The Future Is Ours to Create
By Gary Barnhard

9
LETTER FROM THE PUBLISHER
By Pat Silver

11
NSS ANNOUNCEMENTS
NASA Federal Credit Union
NSS in Second Life Machinima Contest

47
STATEMENT FROM THE CHAIRMAN OF THE EXECUTIVE COMMITTEE
How the Space Movement Began
By Mark Hopkins

48
BOOKS
Mars: Prospective Energy and Material Resources, Edited by Viorel Badescu
Reviewed by Brian L. Enke
By Any Means Necessary: An Entrepreneur's Journey into Space, by Gregory H. Olsen
Reviewed by Clifford R. McMurray

50
CHAPTER LISTINGS

55
SIGNING OFF
This Exoplanet Smells Funny

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