Word: interstellar
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...Maser," the technical name for the amplifier, is not the first of its kind, but the University's maser is the first to run successfully in the twenty-one centimeter wavelength band--the frequency of emission from interstellar hydrogen...
...broadcast on characteristic wave lengths. The Naval Research Laboratory in Washington has turned its 50-ft. radio disk on the comet in the hope of detecting waves from hydroxl (OH) radicals. If astronomers find this odd stuff in comets, they may be able to trace it back into interstellar space. This may lead them, in turn, to new knowledge about what the universe is made...
...device, an infra-red stellar photometer, picks up and records electrically infra-red radiation with wave lengths three to four times longer than those of visible light. The Milky Way is lens-shaped, and ordinary visible light cannot penetrate the great clouds of interstellar dust that obscure the galactic center...
Excessive flight-time has worried spacemen ever since Jules Verne's "voyage" to the moon in a habitable projectile (see cut). Today's rocket speeds are good for trips in the solar system, but for interstellar voyages they are hopelessly slow. Conservative space enthusiasts accept the speed of light as the absolute speed limit in the material universe, and they know that even at this ultimate speed a spaceship can reach only nearby stars within a human generation. This seems to put a limit on man's interstellar mobility. But some optimistic scientists see hope in "time...
...stunned when the University decided to give up the observatory at Bloemfontein, South Africa, for this station was essential to his research on the Milky Way. His response was to enter the new field of radio astronomy, in which he became a world authority with discoveries about interstellar dust that suggested important insights into the birth of stars...