SSI Space Manufacturing 14: Closed Environment Life Support System

International Space Station

Closed Environment Life Support Systems

Dr. William Jewel, Cornell University, and Dr. Lee Valentine, Space Studies Institute
“The Engineering Trade Space for a Robust Closed Ecological Life Support System: A Suggested Technology Road Map”

Dr. Peter Curreri, NASA Marshall Space Flight Center, and Michael Detweiller, Junction Solutions
“Habitat Size Optimization of the O’Neill-Glaser Economic Model for Space Solar Satellite Production”

Sherwin Gormly, Dynamic Corporation, NASA Ames Research Center, and Michael Flynn, NASA Ames Research Center
“Membrane Based Habitat Wall Architectures for Evolving Structures and Comprehensive Resource Recycle in ‘Homestead’ Stage Space Colony Development”


Ben Bova: Coulda Shoulda Woulda in Space

Earth Rise

Ben Bova: Wasted opportunity in space
Naples News
What if we had pushed ahead as vigorously after July 20, 1969, as we had in the years before the first lunar landing?

To begin with, we’d have a small city in orbit by now: a space station where hundreds of people live and work…


NASA Official Touts One-Way Trips to Space


Space exploration volunteers wanted (The catch? It’s a one-way ticket)
The Guardian

The next generation of astronauts may hurtle through the cosmos for years or decades on a mission to explore distant planets and stars – and never return.

A senior Nasa official has told the Guardian that the world’s space agencies, or the commercial firms that may eventually succeed them, could issue one-way tickets to space, with the travellers accepting that they would not come back.


Commentary: Key to Lunar Settlement is Profitability


Return to the Moon: Unless it’s profitable, it won’t be permanent
Ronald Bailey
Reason Magazine

The Apollo moon landings have often been compared to the explorations of Christopher Columbus and the Lewis and Clark expedition to Oregon. For example, on the 20th anniversary of the first moon landing, President George H.W. Bush declared, “From the voyages of Columbus to the Oregon Trail to the journey to the Moon itself: history proves that we have never lost by pressing the limits of our frontiers.”

But what boosters of the moon expeditions overlook is that the motive for pressing the limits of our frontiers in those cases was chiefly profit….


Space: An Essential Element to Humanity’s Growth

Earth’s Dwindling Resources Drive Space Exploration
by Marsha Freeman

In the early 1970s, [Krafft Ehricke] developed the concept of the extraterrestrial imperative to make clear that for mankind to continue to grow, we have no choice but space exploration. The “closed world” of the Earth is finite and eventually, resources will run out, he concluded. But developing and exploiting extraterrestrial resources would remove any “limits to growth,” a pessimistic concept that became popular in the 1970s. There are no “natural” limits, Ehricke insisted, only those that mankind places on himself.