Category Archives: ISRU

Why the Moon?

In spite of my interest in the Asteroid Redirect Mission, I’m still a firm believer that the Moon has a major role to play in space settlement. While Mars and Venus (at the cloud level) may have atmospheres more conducive … Continue reading

Posted in Commercial Space, International Space Collaboration, ISRU, Lunar Commerce, Lunar Exploration and Development, NASA, NEOs, Space Development, Space Exploration, Space Settlement, Space Transportation, Venus | 12 Comments

YHABFT: MIT MarsOne Analysis — Alternative Solutions to the Excess O2 Problem

A few months ago, a group at MIT did an analysis of the MarsOne mission that was fairly critical of the concept, on technical grounds. This week’s FISO telecon featured an update on the analysis they performed, particularly on the … Continue reading

Posted in ISRU, Space Settlement | 15 Comments

Top 10 Reasons Why Something ARM-like Is Worth Doing

[Up-front Disclaimer: My space startup is being paid under the Asteroid Redirect Mission BAA to do a study contract on one possible way to do the Option B mission. Even though we’re not dependent on follow-on work, I figured it … Continue reading

Posted in Commercial Crew, International Space Collaboration, ISRU, Lunar Exploration and Development, NASA, NEOs, Space Development, Space Exploration | 25 Comments

The Slings and Arrows of Outrageous Lunar Transportation Schemes: Part 1–Gear Ratios

[Note: I haven’t quite finished with my Venus ISRU series, but some of the articles I’ve read over the past few days drew me back to this series on propellantless lunar launch approaches that I started writing four years ago … Continue reading

Posted in ISRU, Lunar Commerce, Lunar Exploration and Development, Space Settlement, Space Transportation | 67 Comments

Venus ISRU: ISRU Development Phases

In the last post in this series, we discussed methods for gas phase processing once the easily condenseable atmospheric constituents had been condensed-out. Before continuing on to a discussion about various processes for creating chemical precursors, I thought it would … Continue reading

Posted in ISRU, Space Settlement, Venus | 17 Comments

Venus ISRU: Gas Phase Processes

In the last post, we talked about methods to condense out the five most readily condenseable constituents of the Venusian atmosphere (sulfuric acid, water, sulfur dioxide, hydrogen chloride, and hydrogen fluoride). In some ways the next steps of the gas … Continue reading

Posted in ISRU, Space Settlement, Venus | 7 Comments

Venus ISRU: Condenseables [Updated]

[Note: Karl caught an important oversight in the comments. With a concentration of 150ppm and a boiling point of only -10C, Sulfur Dioxide (SO2) should also be considered a condenseable. It’s dew point is likely pretty close to water’s. So … Continue reading

Posted in ISRU, Space Development, Space Settlement, Venus | 19 Comments

Venus ISRU: What Do We Have to Work With?

In the last mini blog-post, we talked about some of the benefits of atmospheric-feedstock ISRU. But that leads to the question, what materials are there in the Venusian atmosphere, particularly in and around the 50km zone? While chemical engineering may … Continue reading

Posted in ISRU, Space Development, Space Settlement, Venus | 54 Comments

Venus ISRU: Benefits of Atmospheric Feedstocks

The concept of in-situ resource utilization (ISRU) has long been an important one for space settlement. The more one can “live-off-the-land”, the less one has to bring with them, the more affordable settlement becomes. If one can lower the cost … Continue reading

Posted in ISRU, Space Development, Space Settlement, Venus | Leave a comment

Venus ISRU: Introduction

While the Moon still has my “heart” when it comes to offworld destinations, I’ve long been interested in the idea of Venus Cloud Colonies (some references here and here and this article from earlier today). As several others have pointed … Continue reading

Posted in ISRU, Space Development, Space Settlement, Venus | 14 Comments