Trodding through the desert towards this distant destination very patiently with great endurance.

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And most exciting to the young space geek, such a reactor could power a spaceship to a distant planet and then be the power source for a human base at the destination, he said.

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For example, under the industry's byzantine fare structure, it is sometimes cheaper for a traveler to purchase a ticket to a distant city but to leave the plane at an intermediate stopover point -- which is his actual destination.

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