Category Archives: Venus

SpaceX Mars Plans: Jon’s First Take

I’ve had a lot of friends ping me today about my thoughts on Elon’s Mars talk today. I was in a meeting when it happened, and literally was pinged by half a dozen people during the meeting… Now that I’ve … Continue reading

Posted in Commercial Space, ISRU, Launch Vehicles, Lunar Commerce, Mars, NASA, Propellant Depots, Space Development, Space Exploration, Space Settlement, Space Transportation, SpaceX, ULA, Venus | 60 Comments

Random Thoughts: Which is a Better ISRU Propellant on Venus/Mars–LOX/LH2 or LOX/CH4?

I’m not sure if someone has already run the analysis, but I’m kind of curious about which ISRU-derivable propellant combination is better for locations like Venus or Mars where there is plenty of CO2 available in the atmosphere, but limited … Continue reading

Posted in ISRU, Mars, Venus | 14 Comments

Venus ISRU Latest Thoughts

A friend sent me this YouTube video earlier this morning: While this video really covers a lot of the same ground as previous posts in my Venus ISRU series, it still got me thinking about where we stand as far … Continue reading

Posted in ISRU, Venus | 32 Comments

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 | 14 Comments

Random Thought: Venus Really-Balloon Rockets

I haven’t run the numbers on this yet, but I was thinking about how to do reusable transportation on Venus recently. My previous Venusian Rocket Floaties blog post showed that existing upper stages, sealed off, could float at altitudes high … Continue reading

Posted in Launch Vehicles, Space Transportation, Venus | 10 Comments

Venusian Acid-Cooked Turkeys, or Why I Still Read Blog Comments…

In a world where many blogs and websites are shutting down comment threads, I think we all need the occasional reminder of why we permit comments. Sure, you often learn something new from other people’s inputs, and sometimes get corrected … Continue reading

Posted in Humor, Venus | 13 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 | 18 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 | 8 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

Random Thoughts: Inspiration Venus?

This morning, Grant Bonin (of the UTIAS Space Flight Laboratory) sent me a very interesting JBIS paper from about 6 years ago, discussing a manned-flyby/robotic-telepresence expedition to Venus. In light of the Venus ISRU series, I thought it worth doing … Continue reading

Posted in Space Exploration, Venus | 6 Comments