Author Archives: Jonathan Goff

Jonathan Goff

About Jonathan Goff

Jonathan Goff is a space technologist, inventor, and serial space entrepreneur who created the Selenian Boondocks blog. Jon was a co-founder of Masten Space Systems, and is the founder and CEO of Altius Space Machines, a space robotics startup in Broomfield, CO. His family includes his wife, Tiffany, and five boys: Jarom (deceased), Jonathan, James, Peter, and Andrew. Jon has a BS in Manufacturing Engineering (1999) and an MS in Mechanical Engineering (2007) from Brigham Young University, and served an LDS proselytizing mission in Olongapo, Philippines from 2000-2002.

XCOR Thoughts

For those of you who read my blog but somehow hadn’t heard the news already, three of XCOR Aerospace’s four founders left the suborbital rocket startup this past week. I got a notification last week on LinkedIn about Dan DeLong … Continue reading

Posted in Random Thoughts | 7 Comments

2H15 A Good Time for Geeking Out

I have to say the last half of this year is a great time to be a space/sci-fi/RPG nerd: July: New Horizons successfully completes Pluto Flyby August: Shadowrun HongKong by HareBrained Schemes comes out September: HareBrained Schemes planning to launch … Continue reading

Posted in Administrivia | 5 Comments

Summary of Some ULA Papers from AIAA SPACE 2015

ULA has often used the AIAA SPACE conferences as a venue for discussing technical ideas they were working on. In fact, I’ve written several blog posts over the years summarizing or commenting on previous versions of their papers. This year’s … Continue reading

Posted in Commercial Space, Launch Vehicles, Lunar Exploration and Development, Orbital Access Methodologies, Propellant Depots, Space Transportation, SpaceX, ULA | 19 Comments

New Blogger: Chris Stelter

With several of the original bloggers now off doing their own thing, and John Hare and me so busy running our own businesses, I decided to invite someone new to join the ranks of Selenian Boondocks bloggers–Chris Stelter. Chris is … Continue reading

Posted in Administrivia | 7 Comments

Random Thoughts: Lunar Magneto-Lithobraking

One of the big challenges in lunar exploration and development is the amount of delta-V needed get down to the surface and back again. On planets like Earth, and to a lesser extent Mars, spacecraft can dump momentum into the … Continue reading

Posted in Lunar Commerce, Lunar Exploration and Development, Technology | 20 Comments

YHABFT: The Danger of Insider Euphemisms: “Shooting the Puppy” Edition

I’ve noticed that business people and engineers tend to use a lot of jargon and insider euphemisms in their conversations, sometimes with rather humorous results. I had a recent example occur that was too funny not to share (but too … Continue reading

Posted in Humor, YHABFT | 8 Comments

The Best of Selenian Boondocks’ First 10 Years

June 16th this year was the 10 year anniversary of starting Selenian Boondocks. It’s been a great 10 years. We’ve had a lot of good contributors, including myself, Ken Murphy, Kirk Sorensen, and last but definitely not least, John Hare. … Continue reading

Posted in Administrivia | 4 Comments

Goff Family Vacation 2015

We’re about to head out on a two week road-trip/vacation–the longest vacation we’ve done as a family since I started Altius in 2010. Here’s our planned route map: We’re talking about 3500 miles, not counting any driving around at our … Continue reading

Posted in Administrivia, Excuses for Light Blogging, Family | Leave a comment

Boomerang Air-Launched TSTO RLV Concept Part III: Carrier Plane Support Subsystems

Before getting into my thoughts on potential options for the carrier plane itself, I wanted to mention a few nice-to-have options for the carrier plane itself. I don’t know that any of these is strictly required, but all potentially help: … Continue reading

Posted in Boomerang TSTO RLV, Commercial Space, Launch Vehicles, Orbital Access Methodologies, Rocket Design Theory | 3 Comments

Boomerang Air-Launched TSTO RLV Concept Part II: Carrier Plane Gamma Maneuver Safety Considerations

In this post I would like to discuss some of the key considerations and options governing the carrier plane for my Boomerang TSTO RLV concept. Specifically I’ll be covering considerations relating to safely supporting the Gamma Maneuver, and useful support … Continue reading

Posted in Boomerang TSTO RLV, Commercial Space, Launch Vehicles, Orbital Access Methodologies, Rocket Design Theory | 5 Comments