Space-Jacks are what we call commercial astronauts. They perform off-world and in space. These are the tools they utilize to prepare for the job.



Neutral-buoyancy tanks are the best way for humans to simulate space conditions. Working in space without gravity requires a unique way of thinking. Our training tanks are blacked-out to better replicate space conditions, and are lined with grab-bars and tethering lines.

High-G Centrifuge

A centrifuge provides the opportunity to experience the G-forces associated with launch and reentry. We do not require candidates to be jet pilots so knowing how to fly the spaceship is not required, but knowing how your body will react before you launch is key to success.


A pressurized spacesuit and helmet are required for off-world labor. The suits we develop are tested to greater than needed limits, will operate in the vacuum of space and on the Moon, and come with various outer garment to match the terrain.

Gravity Harness

We have horizontal and vertical gravity harnesses which provide a constant tension, pulling astronauts off target during training. Space-Jacks practice five simultaneous sets of commands while suspended in a full body harness. Our simulator utilizes grab-bars and tethering lines to better replicate EVA spacewalks.

Water Landings

Space-Jacks practice water landings and rescue swimming in a large water tank that simulates ocean water. Space transportation currently lands in the ocean on reentry to avoid hard landings. Knowing what to expect from the sea can make the difference between swimming or sinking.

Vacuum Chamber

We pressure and vacuum test our suits and helmets in order to prepare for the harsh conditions of space. Vacuum chambers allow us to simulate varying pressure conditions the Space-Jacks will experience when working off-world.

Gyro-Seat Spinner

Spinning out of control in space affects the human mind and body. Space-Jacks practice movement and cognitive functions after training inside the gyro-spinner. Simple actions become more difficult for astronauts to achieve while experiencing vertigo and dizziness.

Zero-Gravity Flights

During training Space-Jacks take a trip on a Zero-Gravity parabolic flight. The experience gives candidates the opportunity to see how uncomfortable, and fun, being gravity-free can be.

Tools & Equipment

Space-Jacks practice on replicas of space subsystems that are in need of repair. We repeatedly practice component replacement, repairing faulty equipment, and returning subsystems to working condition.

Terrain Operations

Space-Jacks practice living and working in different terrains around North America that better simulate off-world conditions. Spacesuit exchange, habitat familiarization, mining equipment testing, and daily routines are all tested in differing landscapes: cold (Alaska), hot (Arizona), rock (Hawaii), cave (Texas).


The human body undergoes changes when traveling to and from space. Space-Jacks spend a lot of time in the classroom learning about physics, biology, medicine, gravity, pressure, compression, temperature exchange, material science, inertia, and more.