How can an idea turn into a plan? It needs to be discussed, analyzed and debated. The intention of the discussion forum is to facilitate conversations that lead to action.

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Forum Etiquette
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Supporting a Crew in Cislunar Space

This article on the BBC grabbed my attention. According to this article, the habitability of the crew cabin in the Orion module or capsule will be not much more capacious per...
20171101.marc m. cohen passport photo
Founder of Space Architecture as a Discipline
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Solving the "Candle Problem": a case study in non-trivial problem solving and behavioral economics

In 2009, Dan Pink gave a TED talk titled The puzzle of motivation (, in which he presented Karl Dunker's The Candle Problem ( and a behaviorial study by Sam Glucksberg. The candle problem is a behavi...
Software & Systems Engineer
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Mars Reconniassance Flyer Project Proposal

Proposal: A Martian free-flyer for surface exploration and site survey operations. Rationale: It has been earlier studied by a number of groups that Martian exploration could be well-served by aerial surveys of interesting locations on the planet. One drawback to most concepts have been the la...
Outbound - We Live And Work In Space
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Book Club!

This thread is to recommend and discuss great space/ science fiction books!
Space Architect
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Model City

Since one of the goals of particular missions is to build a more idea city I am curious as to what people think should be done to build it. The most ideal form might be that of a custom built city starting roughly in the middle of nowhere and moving as many likeminded people in as possible. How...
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Lunar Soil Autoconditioner (LSA) Project Proposal

Proposal: An automated device for the transformation of Lunar regolith into growing soil for human food production. Rationale: Numerous studies have been conducted over several decades on the reconstitution of lunar regolith into workable farming soil. The time may have come to automate the be...
Outbound - We Live And Work In Space
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Space Decentral Wiki

Space Decentral will have a Wiki to store and share all of our collective knowledge! Untill we develop it, I propose we use this post to discuss the structure, contents and format of this Wiki. Also, let's start populating it by adding reference material to the google drive folder (https://drive....
Space Architect
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Deep Space Gateway Science Workshop 2018 LPI

Will be interesting to get some feedback from Marc Cohen who is presenting at this conference. It looks like the conference is science driven but perhaps other uses can be explored.
Senior Mission Design Systems Engineer - retired from NASA
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General Community Meeting #3 - Sunday April 8th - 11:00 AM (PST)

Edited: Due to the holidays around March 31st, we have postponed out community meeting to the following week. New date is Sunday, April 8th, at 11:00 am (PST). Sorry for the short notice! Hi everyone :) Our third community meeting is just around the corner. This is a special meeting, a...
Space Architect
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Any ISDC 2018 attendees out there?

I would enjoy meeting you all in person sooner than later. The day-to-day schedule is still in flux, but the overall conference is May 24th to 27th in the west Los Angeles area.
Co-Founder, Space Cooperative