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.

Research Papers I Wish I Could Con Someone Into Writing Part I: Lunar ISRU in the Age of RLVs

One of the things I’d love to do if I were successful enough at Altius to afford it would be to sponsor graduate-level research into space technology, business, economics, and policy topics that I’m interested in. Not just because I … Continue reading

Posted in BFR, ISRU, Lunar Commerce, Lunar Exploration and Development, Research Papers I'd Like to Con Others Into Writing, Space Development | 18 Comments

Random Thoughts: A Now Rather Cold Take on BFR

When Elon gave his update on BFR at the IAC conference in Australia, I was originally going to post some thoughts right away. But with Falcon Heavy’s maiden launch attempt coming up tomorrow, I realized I still hadn’t collected my … Continue reading

Posted in BFR, Blue Origin, Random Thoughts, SpaceX | 49 Comments

AAS Paper Review: Practical Methodologies For Low Delta-V Penalty, On-Time Departures To Arbitrary Interplanetary Destinations From A Medium-Inclination Low-Earth Orbit Depot

I’d like to share a technical paper about propellant depots and interplanetary mission orbital dynamics that I helped co-author this past year, with the help of two of my astrogator friends, Mike Loucks and John Carrico of Space Exploration Engineering … Continue reading

Posted in Orbital Dynamics, Propellant Depots, Space Transportation, ULA | 11 Comments

Comment Bumping: Venus Electrolysis and Space Settlement Norwegian Perspective

Life has been busy enough lately that I haven’t been able to do many of my own blog posts, but I wanted to bring two recent comments from old Venus threads to the top to get them a little more … Continue reading

Posted in Comments, ISRU, Space Settlement, Venus | 16 Comments

Random Thoughts/Rocket Legos: Masten Xephr as a Vulcan SRB Replacement?

I’m sick at home today, so had extra time to think about fun technical concepts, so here’s an interesting one to think about. Right now, ULA’s plans for Vulcan include using expendable Orbital ATK GEM 63XL sold strapon boosters to … Continue reading

Posted in Launch Vehicles, MSS, Random Thoughts, Rocket Legos, ULA | 7 Comments

Random Thoughts: RLVs and Megaconstellations

Last month I was out in Washington DC for a satellite industry conference (the 2017 Satellite Show). My startup has been working on a cool satellite servicing related project that I need to blog about soon, and we were out … Continue reading

Posted in Blue Origin, Business, Launch Vehicles, MSS, Random Thoughts, RLV Markets, Space Transportation, SpaceX | 12 Comments

Random Thoughts: First Pass Analysis of a White Dragon/Xeus Lunar Sortie Mission

After yesterday’s SpaceX announcement of having booked two customers for a Apollo-8 style mission around the Moon and back, using Falcon Heavy and Dragon V2, I got thinking about ways to take the next step in lunar tourism–surface missions. Now, … Continue reading

Posted in Commercial Crew, Launch Vehicles, Lunar Exploration and Development, Propellant Depots, Random Thoughts, Space Exploration, Space Transportation, SpaceX, ULA, YHABFT | 51 Comments

Random Thoughts: The Difference Between a Base and a Settlement (by Doug Plata)

There was an interesting comment by Doug Plata a few days ago that I wanted to repeat as a blog post. Background was discussing the idea of long-term stays on the Moon, similar to my old Lunar One Way to … Continue reading

Posted in Lunar Commerce, Lunar Exploration and Development | 10 Comments

Random Thoughts: Throwing the Moon a Bone

[Note: This blog post was originally planned to be something significantly longer, triggered by one of Eric Berger’s recent Ars Technica articles. But running a bootstrapped startup gave me the choice of waiting until this was totally irrelevant, or saying … Continue reading

Posted in Commercial Crew, Commercial Space, COTS, Lunar Commerce, Lunar Exploration and Development, Random Thoughts | 9 Comments

What are the Odds?

I wanted to expand on one thought from last night. If you have a launch vehicle that you want a reasonably good chance of reusing 1000x, it actually needs a lot better than a 1:1000 Loss of Vehicle probability for … Continue reading

Posted in Launch Vehicles | 17 Comments