this region of the exosphere, he was thankful for his cadet training in zero gravity. A special machine, developed only in recent years, simulated the weightlessness of space and trained the cadets for endurance in such artificial conditions.

“Describe some of the things you see, Marshall,” General Forsythe said over Marsh’s helmet receiver. “I’ve just cut in a recorder.”

“It’s a scene almost beyond description, sir,” Marsh said into the helmet mike. “The sky is thickly powdered with stars. The Milky Way is very distinct, and I can make out lots of fuzzy spots that must be star clusters and nebulae and comets. Mars is like an extremely bright taillight, and the moon is so strong it hurts my eyes as much as the direct sun does on earth.”

Marsh saw a faintly luminous blur pass beyond the ship. It had been almost too sudden to catch. He believed it to be a meteor diving Earthward at a speed around forty-five miles a second. He reported this to the general.

As he brought his eyes down from the more distant fixtures of space to those closer by on Earth, a strange thing happened. He was suddenly seized with a fear of falling, although his zero-gravity training had been intended to prepare him against this very thing. A cold sweat come out over his body, and an uncontrollable panic threatened to take hold of him.

He made a sudden movement as though to catch himself. Forgetting the magnification of motion in frictionless space and his own weightlessness, he was shot quickly to the end of his safety line like a cracked whip. His body jerked at the taut end and then sped swiftly back in reaction toward the ship, head foremost. A collision could crack his helmet, exposing his body to decompression, causing him to swell like a balloon and finally explode.

In the grip of numbing fear, only at the last moment did he have the presence of mind to flip his body in a half-cartwheel and bring his boots up in front of him for protection. His feet bumped against the rocket’s side, and the motion sent him hurtling back out to the end of the safety line again. This back-and-forth action occurred several times before he could stop completely.

“I’ve got to be careful,” he panted to himself, as he thought of how close his space career had come to being ended scarcely before it had begun.

General Forsythe cut in with great concern, wondering what had happened. When Marsh had explained and the general 

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