space explorer n.

Overhead hung an ordinary tell-tale compass, and compactly placed on other parts of the wall were barometers, thermometers, barographs, and, in fact, practically every instrument that the most exacting of aeronauts or Space-explorers could have asked for.

Ran Yok was neither liar nor madman, but the greatest space explorer of all worlds and all time.

The shouting died for a moment as they took in the scene before them—tall Earthman in the space-explorer’s leathern garb, all one color from the burning of savage suns save for the sinister pallor of his no-colored eyes in a scarred and resolute face, gun in his steady hand and the scarlet girl crouched behind him, panting.

Previously unknown epidemics such as the Black Mould had followed wars, or broken out when the space explorers contracted them on other planets and carried them to Earth.

He had become a space explorer, an adventurer of the skyways.

Loring, the space-explorer, looked anxiously at the bald Greek next him.

According to the records which exist in the Galactic Archives (exhumed lately from a ruined library on Mars) Victor Hughes Hardin—the V. H. Hardin so dear to legend—had no more idea of being a space explorer before he became one, than he had of being immortal.

Dick Warren, famed lecturer and space explorer, suddenly finds an item of interest.

The major significance of these aliens is their size and lack of intelligence. Their presence on Earth is usually by accident, either falling into the atmosphere or being unwittingly brought back by space-explorers.

Its sequel, ‘The Astronauts’, introduces a female space explorer for a return visit to Mars.