Original subtitles

a eyespace factory who brought you the

visionary Mars habitat design Marsha is

making the dream of living on Mars a

reality layer-by-layer in just five

weeks

a eyespace factory progressed from

isolated tests of our super-strong

polymer to an autonomously printed large

area slab our future habitat foundation

subsequently validated by NASA four

weeks later we successfully printed in

24 hours a large cylinder designed to

hold 1,200 gallons of water complete

with prefabricated wall penetrations

robotically placed and sealed on the fly

the design and engineering for Marsha

has been updated with lessons learned

from our ongoing development of this

prototype we reaffirmed the importance

of a robust foundation thermoplastics

are extruded as hot liquids which

contract as they cool causing flat

slender objects to warp into concave

shapes in order to keep warping to a

minimum Marcia's foundation will be

printed in concentric rings beginning

from the outside in contrast to full

area plates rings which shrink

predominantly in plane leaving

predictable joints that can be

backfilled without inducing shrinkage in

the overall slab with the anchors in

place a topping slab can be printed as a

final seal without the risk of geometric

distortion the tie-down clamps are now

located in the interior of the habitat

protecting hardware from the elements

and eliminating bending forces in the

slab flange another design update

integrates the sliding bearings and the

clamp into a single component greatly

reducing complexity mass and

streamlining construction due to their

high mass complexity habitat

penetrations like windows and hatches

will initially be fabricated on earth

flown to Mars and integrated into the

primary structure which is 3d printed

using local Martian resources in

addition to being designed for thermal

performance air tightness and radiation

shielding they

integrate perfectly with the printed

structure Marcia's window cross-section

is derived from the cupola of the

International Space Station which

features four panels of polycarbonate

two to hold internal pressure and two to

protect the pressure panels against

impacts and debris we have modified it

with operable louvers in-between the

redundant pressure and debris panes

magnetically controlled to allow the

crew to regulate the light entering the

interior for purposes of health and

climate control during construction

elements are placed into precise voids

left behind by the printer integration

consists of depositing a coat of

airtight but flexible sealant placing

the elements and holding until the

sealant adheres the key stone like shape

decreases the risk of an imperfect fit

by acting as a placement guide

effectively increasing construction

tolerances and ensuring a snug

wedge-like fit an inner flange

mechanically holds the elements in place

against the force of internal pressure

which becomes fully secured as printing

continues the skylight is mounted atop

the finished print and secured using

sealant and linear motorized clamps the

habitat is then pressurized in

preparation for human occupants Marsha

is located inside Donia men say it sits

in the relatively mild North

transitional climate zone that has

access to year-round sunlight a measure

that promotes psychological well-being

and makes solar power viable at 39

degrees North it harbors accessible

deposits of subsurface ice for

conversion to propellant breathable air

and potable water the site features

concentrated volcanic rock deposits

covered only by a thin layer of loose

regolith making them accessible as an

institute resource finally Cydonia sits

at 11 kilometers below mean elevation

which offers higher protection from

harmful cosmic radiation due to the

greater thickness of the atmosphere

overhead

this site provides all the assets

required for a safe and sustainable

human presence on Mars

[Music]