Category Archives: Space Transportation

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 | 66 Comments

Venusian Rocket Floaties

While doing research previous in preparation for the Venus ISRU series, one of the questions that I knew needed a good answer was “how do you actually send vehicles to/from a floating cloud colony?” Unlike the any other near-term manned … Continue reading

Posted in Launch Vehicles, Space Transportation, Venus | 27 Comments

A Modest Proposal: the COTS Approach to SLS/Orion

I came up with an interesting new idea based on the recent press conferences about the successful completion of NASA’s COTS program, Bigelow’s report on the study they did on commercial lunar development, and the SLS/Orion developers discussion of “Removing … Continue reading

Posted in Commercial Crew, COTS, Launch Vehicles, NASA, Politics, Space Exploration, Space Policy, Space Transportation, Technology | 22 Comments

DARPA Experimental SpacePlane 1 (XS-1) Program (Updated)

Over on twitter today, Jeff Foust (@jeff_foust) reported on a new reusable rocket project that will be starting in DARPA’s Tactical Technology Office (TTO) next month. Rumor has it that Jess Sponable, the former Program Manager for the DC-X project, … Continue reading

Posted in Launch Vehicles, Space Transportation, Technology | Tagged | 27 Comments

Centaur UnCrasher Stages for Simplified Lunar Landings [Updated 11:35pm MDT 9/4/13]

[Editor's Note: I was recently pinged by a friend on NASASpaceFlight.com about an "UnCrasher" lunar lander architecture concept I had written about a few years ago. I went to point him to a blog post on the idea, when I … Continue reading

Posted in Lunar Exploration and Development, Space Transportation | 20 Comments

YHABFT: RD-180 Sales Ban Rumor, A-Com, and FY11 Budget Request HLV Propulsion

The RD-180 Sales Ban Rumor As some of you probably saw on twitter last night, Russia Today ran a piece claiming that Russia was mulling a sales ban on the RD-180 rocket engine to the US (h/t Jeff Foust). For … Continue reading

Posted in NASA, Space Policy, Space Transportation, YHABFT | 14 Comments

Random Thoughts: SLS Dual-Use Upper Stage as a Super-ACES

Friends, Americans, Countrymen. Lend me your ears. I’ve come to provide constructive suggestions to SLS, not to bury it. A couple days ago, a friend asked me what I knew about the DUUS “Dual-Use Upper Stage” for SLS, and if … Continue reading

Posted in Launch Vehicles, NASA, Space Transportation | 7 Comments

Crew Safety Perspective

There’s been a lot of discussion over the past year or two on a few blogs (this one, Transterrestrial Musings, and also Wayne Hale’s blog, among several others) about the proper level of emphasis on crew safety for commercial crew … Continue reading

Posted in Commercial Crew, Commercial Space, COTS, NASA, Space Policy, Space Safety, Space Transportation | 28 Comments

Some Blog Post Topics for 2013 (Updated 1/2/13)

Last month, while in the middle of a technical writing project for work, I tweeted a list of a few blog posts I wanted to write sometime in the near future, and asked some friends to nag me occasionally until … Continue reading

Posted in Administrivia, Altius Space Machines, Bigelow Aerospace, Commercial Space, COTS, Excuses for Light Blogging, ISRU, Launch Vehicles, Lunar Exploration and Development, MHD Aerobraking and TPS, Space Settlement, Space Transportation, SpaceX, Technology, Venus | 9 Comments

Someone is Wrong on the Internet!

And ironically, it’s XKCD What-if that is wrong. Well, not wrong by commission, but wrong by omission. First off, I’m a huge fan of both XKCD (well the 98% of their comic strips that are SFJ) and XKCD-What If. If … Continue reading

Posted in Humor, Propellant Depots, Space Tethers, Space Transportation | 5 Comments