

Project Horizon at Astronautix
Image credit: US Army
Image source: Project Horizon Reports, NASM
Project Horizon at Astronautix
Image credit: US Army
Image source: Project Horizon Reports, NASM
The HORIZON outpost as it appears in late 1965, after about six months of construction effort. The basic building block for the outpost will be cylindrical metal tanks ten feet in diameter and twenty feet in length.
Project Horizon at Astronautix
Image credit: US Army
Image source: Project Horizon Reports, NASM
Conceptual view of the operations in the equatorial earth orbit. The operation in orbit is principally one of propellant transfer and it not an assembly job. The vehicle being fueled is the third stage of a SATURN II with a lunar landing and return vehicle attached. The third stage of the SATURN II was used in the combination into orbit and has thus expended its propellants. This stage is fueled into orbit by a detachment of approximately ten men after which the vehicle then proceeds on the moon.
Project Horizon at Astronautix
Image credit: United States Army
Image source: Project Horizon Reports, NASM
Scientists differ on whether sites should be underground in a lunar crater or “ocean” or if they should be blasted out of the sides of mountains.
The Next Fifty Years On The Moon
by Erik Bergaust
G.P. Putnam’s Sons, 1974
Project Horizon at Astronautix
Image credit: US Army
Image source: Numbers Station
First-stage lunar base. This is the type of shelter proposed for the construction crew responsible for building permanent quarters.
The Next Fifty Years On The Moon
by Erik Bergaust
G.P. Putnam’s Sons, 1974
LESA at Astronautix
Image credit: Boeing
Image source: Numbers Station
ARTIST’S CONCEPTION OF A SCIENTIFIC BASE ON THE MOON AND A DIFFUSE NEBULA IN THE CONSTELLATION CASSIOPEIA
Image credit: NASA LRC
Image source: DVIDS
A combine of three lunar shelters provides adequate quarters for a construction of eighteen men. It will take many years to complete a major moon colony for 100 or more men-and women.
The Next Fifty Years On The Moon
by Erik Bergaust
G.P. Putnam’s Sons, 1974
LESA at Astronautix
Image credit: Boeing
Image source: Numbers Station
A conventional spacecraft, right, has brought into space a manned vehicle which is being towed toward another celestial body by a nuclear rocket.
The Next Fifty Years in Space
by Erik Bergaust
Macmillan, 1964
Image credit: Convair
Image source: Numbers Station
Lockheed’s Extended Lunar Operations was an extensive lunar base development program that would (after Ranger, Surveyor, and Apollo) have begun with the delivery of ELO modules by Saturn C-5s in 1969, an interim lunar exploratory base constructed in mid 1971 and a permanent base complete by 1975.
Image credit: Lockheed
Image source: Mike Acs