
Image credit: North American Rockwell
Image source: Mike Acs

A Boeing design study for a Mars exploration probe, 40 ft. in diameter and weighing 600 lb. Assembled and launched at a space-station, the unmanned probe would draw its power from the Sun. Propelled by an ion rocket, it would take three years to orbit Mars and return.
Eagle Book of Rockets and Space
Longacre Press, 1961
Right:

MARS VEHICLE. Drawing, based on Boeing study, of space vehicle designed for launching from orbiting platform for reconnaissance flight to Mars and return. Lunar, orbital and interplanetary system studies, and expanding programs such as the advanced Minuteman solid-propellant ICBM, are typical of challenging assignments Boeing offers electronic-electrical engineers.
Missiles and Rockets
December 7, 1959
Image credit: Boeing Aircraft Company
Image source(s): Numbers Station, Internet Archive

B&W (As seen in Roundup dated Nov. 24, 1967)
NOV. 67 S-67-51373
MANNED SPACE CENTER, HOUSTON, TEXAS
ORBITAL WORKSHOP — Artist’s concept showing how a Saturn S-IVB stage will appear when converted to the Apollo Applications Orbital Workshop. Launched fully fueled with airlock and docking adaptor attached, the S-IVB’s liquid hydrogen tank becomes a shirtsleeve environment workshop after the fuel has been depleted. At left is an Apollo Command and Service Module launched separately and docked into one of the docking adaptor’s ports. The Apollo Telescope Mount is shown docked into one of the side ports. The ATM will be joined to the cluster in a second phase of the program. Solar cell “wings” to provide power fold outward from the S-IVB after orbit is achieved. McDonnell Douglas Corporation’s Missile and Space Systems Division is making the S-IVB orbital workshop modifications under contract to NASA Marshall Space Flight Center and McDonnell Astronautics Company is developing the airlock under contract to MSC. (MCDONNELL DOUGLAS PHOTOGRAPH)


Look closely and you’ll notice subtle differences between this version of the painting and a colour rendering found in the SDASM Archives I’ve shared before.
If you’re interested in seeing more of Jacobe’s work, his artwork for the Douglas MOL can be found here. The images are small and plastered with watermarks, so it’s a bit of a tease but they are beautiful.
Image credit: NASA
Image source: Numbers Station


Our World in Space
Robert McCall & Isaac Asimov
New York Graphic Society, 1974
Image credit: NASA
Image source: Numbers Station


Our World in Space
Robert McCall & Isaac Asimov
New York Graphic Society, 1974
Image credit: NASA
Image source: Numbers Station

Image credit: McDonnell Douglas
Image source: SDASM Archives