Category Archives: Variable Gravity

ESIL-8 Elements of Lunar Commerce Presentation

I was invited to give a talk on lunar commerce at a Emerging Space Industry Leaders workshop last week hosted by ULA at their Centennial, Colorado campus, and put on by my friends at Advanced Space LLC and the FAA … Continue reading

Posted in Altius Space Machines, Business, Commercial Space, ISRU, Launch Vehicles, Lunar Commerce, Lunar Exploration and Development, MHD Aerobraking and TPS, NASA, NEOs, Propellant Depots, Space Development, Space Settlement, Space Transportation, SpaceX, Technology, ULA, Variable Gravity | 36 Comments

Random Thoughts: ยต-xGRF

I’ve previously blogged a few times about Kirk Sorensen’s xGRF (variable Gravity Research Facility) concept as a way to answer the critical questions of how humans respond to hypogravity. Kirk’s concept involved a lab spacecraft and counterweight connected by a … Continue reading

Posted in Random Thoughts, Space Tethers, Variable Gravity | 7 Comments

Random Thought: Dragon V2 as an xGRF Platform?

Review: How Much Gravity Do We Need, and Why Do We Care? One of my hobby horses that I’ve blogged about a few times is the question of how much gravity do humans need to be healthy? As I’ve pointed … Continue reading

Posted in Commercial Crew, Commercial Space, NASA, Space Development, Space Settlement, Space Tethers, SpaceX, Variable Gravity | 35 Comments

Variable Gravity Research Facility (xGRF)

For those of you who aren’t reading our ASM Blog, I participated in a panel at the SSI Conference last week in San Jose. Dallas Bienhoff presented the paper we are working on coauthoring, Gary Hudson talked about earth-to-orbit transportation, … Continue reading

Posted in Bigelow Aerospace, Lunar Exploration and Development, NASA, Space Development, Technology, Variable Gravity | 51 Comments