
Image credit: Douglas
Image source: SDASM Archives

Image credit: Douglas
Image source: SDASM Archives

Image credit: McDonnell Douglas
Image source: Numbers Station

Image credit: Robert Kemp Collection
Image source: SDASM Archives

Image credit: Ryan Aeronautical
Image source: SDASM Archives

Saturn seen from its satellite Midas

Saturn with its rings seen edge on

Spaceship explores the rings of Saturn
Conquering the Sun’s Empire
Frederick I. Ordway, III
and Ronald C. Wakeford
Illustrations by Harry H-K Lange
E.P Dutton & Co., 1963
Image source: Numbers Station

Explorers in Miranda viewing the banded atmosphere of Uranus

Uranus and its moons

Spaceship approaching Uranus; the squat, rugged landing craft will be detached from the manned spaceship as it approaches the planet.
Conquering the Sun’s Empire
Frederick I. Ordway, III
and Ronald C. Wakeford
Illustrations by Harry H-K Lange
E.P Dutton & Co., 1963
Image source: Numbers Station

The planet Neptune

Spaceship on Triton

Resupply ship on faraway Nereid preparing for take-off to Pluto
Conquering the Sun’s Empire
Frederick I. Ordway, III
and Ronald C. Wakeford
Illustrations by Harry H-K Lange
E.P Dutton & Co., 1963
Image source: Numbers Station

Pluto shadowed against Milky Way galaxy

Ion-propelled spaceship entering into orbit around Pluto

Radio telescope on Pluto studying distant stars
Conquering the Sun’s Empire
Frederick I. Ordway, III
and Ronald C. Wakeford
Illustrations by Harry H-K Lange
E.P Dutton & Co., 1963
Image source: Numbers Station

Interstellar spaceship arriving at an alien Solar System trillions of miles away

6,250 times as great as the distance from Earth to Pluto. To make such astronomical differences comprehensible we can say that the difference between these two distances is like the difference between the circumference of Earth (25,000 miles) and 4 miles.
Conquering the Sun’s Empire
Frederick I. Ordway, III
and Ronald C. Wakeford
Illustrations by Harry H-K Lange
E.P Dutton & Co., 1963
Image source: Numbers Station