: Ancient Civilizations of Mexico and Central America Third and Revised Edition by Spinden Herbert Joseph - Mexico Antiquities; Indians of Central America Antiquities; Indians of Mexico Antiquities; Central America Antiquities

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Illustrator: Dick Francis

The Impossible Voyage Home

Illustrated by DICK FRANCIS

"Space life expectancy has been increased to twenty-five months and six days," said Marlowe, the training director. "That's a gain of a full month."

Demarest bent a paperweight ship until it snapped. "It's something. You're gaining on the heredity block. What's the chief factor?"

"Anti-radiation clothing. We just can't make them effective enough."

The planets whirled around the Sun. Earth crept ahead of Mars, Venus gained on Earth. The flow of ships slackened or spurted forth anew, according to what destination could be reached at the moment:

"A month helps," said Demarest. "But where does it end? You can't enclose a man completely, and even if you do, there still is the air he breathes and food he eats. Radiation in space contaminates everything the body needs. And part of the radioactivity finds its way to the reproductive system."

But that was in the future.

"There's a lot you could do," he told Demarest. "Shield the atomics."

"Working on it," commented Demarest. "But every ounce we add cuts down on the payload. The best way is to get the ship from one place to another faster. It's time in space that hurts. Less exposure time, more trips before the crew has to retire. It adds up to the same thing."

In the interval, Earth had drawn ahead. The gap between the two planets was widening.

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