Ad Astra 2015 Spring (Volume 28 Number 1)
Cover image: Grand Prize Winner of the 2014 NSS Roadmap to Space Settlement International Student Art Contest: “Arcturus Space Settlement” by Bogdan Alexandru Cionca, 11th Grade, Bucharest, Romania, illustrating Roadmap Milestone 19.
- 12
THE OTHER SUBORBITAL MARKET:
COMMERCIAL AND RESEARCH PAYLOADS
By Clifford McMurray - 16
CHASING THE DREAM
Sierra Nevada Corp’s Mini Shuttle
By Mark Williamson - 22
REDUCING THE RISK OF LONG-DURATION SPACEFLIGHT
By Marianne Dyson - 28
EQUILIBRIUM
Astronauts relearn how to plant feet on the ground after long-duration spaceflight
By Travis K. Kircher - 32
EFT-1: WHAT HAPPENS NEXT?
By Bart Leahy - 36
A CHANCE ENCOUNTER
What a passing comet can teach us about Mars
By Roxann Elliott - 40
EARTH: ONE GRAIN IN A FIELD OF MILLET
By Lance Frazer - 42
ENTERPRISE IN
SPACE:
Changing Science Fiction into Science Fact
By Christopher Bryan Jones - 45
CONSTRUCTING SPACE HABITATS
The NSS Roadmap to Space Settlement Student Art Contest
By Lynne F. Zielinski - 46
A TALE OF TWO SPACE SETTLEMENT BILLS
By Steve Wolfe
- 7
LETTER FROM THE PUBLISHER
By Pat Silver - 8
NSS ANNOUNCEMENTS
Dateline Orion
By John F. Kross - 10
NSS CORRESPONDENCE
NSS Looks Forward to an Exciting 2015 - 47
LETTER FROM THE EXECUTIVE COMMITTEE CHAIR
The Implications of 3D Printing for Space Settlements
By Mark Hopkins
- 48
BOOKS
2001: The Heritage and Legacy of The Space Odyssey, by Frederick I. Ordway, III and Robert Godwin
Reviewed by Ted Spitzmiller
Infinite Worlds: The People and Places of Space Exploration, by Michael Soluri
Reviewed by Robert A. Lee - 50
CHAPTER LISTINGS - 55
SIGNING OFF
Orion Recovery
Ad Astra 2015 Spring (Volume 28 Number 1)
Cover image: Grand Prize Winner of the 2014 NSS Roadmap to Space Settlement International Student Art Contest: “Arcturus Space Settlement” by Bogdan Alexandru Cionca, 11th Grade, Bucharest, Romania, illustrating Roadmap Milestone 19.
- 12
THE OTHER SUBORBITAL MARKET:
COMMERCIAL AND RESEARCH PAYLOADS
By Clifford McMurray - 16
CHASING THE DREAM
Sierra Nevada Corp’s Mini Shuttle
By Mark Williamson - 22
REDUCING THE RISK OF LONG-DURATION SPACEFLIGHT
By Marianne Dyson - 28
EQUILIBRIUM
Astronauts relearn how to plant feet on the ground after long-duration spaceflight
By Travis K. Kircher - 32
EFT-1: WHAT HAPPENS NEXT?
By Bart Leahy - 36
A CHANCE ENCOUNTER
What a passing comet can teach us about Mars
By Roxann Elliott - 40
EARTH: ONE GRAIN IN A FIELD OF MILLET
By Lance Frazer - 42
ENTERPRISE IN
SPACE:
Changing Science Fiction into Science Fact
By Christopher Bryan Jones - 45
CONSTRUCTING SPACE HABITATS
The NSS Roadmap to Space Settlement Student Art Contest
By Lynne F. Zielinski - 46
A TALE OF TWO SPACE SETTLEMENT BILLS
By Steve Wolfe
- 7
LETTER FROM THE PUBLISHER
By Pat Silver - 8
NSS ANNOUNCEMENTS
Dateline Orion
By John F. Kross - 10
NSS CORRESPONDENCE
NSS Looks Forward to an Exciting 2015 - 47
LETTER FROM THE EXECUTIVE COMMITTEE CHAIR
The Implications of 3D Printing for Space Settlements
By Mark Hopkins
- 48
BOOKS
2001: The Heritage and Legacy of The Space Odyssey, by Frederick I. Ordway, III and Robert Godwin
Reviewed by Ted Spitzmiller
Infinite Worlds: The People and Places of Space Exploration, by Michael Soluri
Reviewed by Robert A. Lee - 50
CHAPTER LISTINGS - 55
SIGNING OFF
Orion Recovery
