Word: arrhenius
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Dates: during 1970-1979
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...From the "panspermia" theory of Swedish Chemist Svante Arrhenius, who suggested in 1908 that living cells floated haphazardly through the universe, bringing life to desolate planets...
...fiction becomes science fact, the exploits of Buck Rogers seem less and less fanciful. Reviving an old idea, two University of California scientists have now proposed that astronauts follow in the footsteps of Buck and Wilma. Man's next target in space, Hannes Alfvèn and Gustaf Arrhenius argue in Science, should be one of the tens of thousands of asteroids -or planetoids, as Buck called them -that circle the sun between the orbits of Mars and Jupiter...
Asteroid walks would be high adventure. Weighing less than an ounce in full space gear, an astronaut might jump half a mile off the surface before drifting gently back down. But Alfvèn and Arrhenius suggest limiting such activity to asteroids at least a mile across...
...undertake such an adventure in the near future, there is little time to lose. In 1975, Alfvèn and Arrhenius note, an asteroid that seems almost ideal for exploration will come within 14 million miles of earth. It is 15 miles long and five miles wide, and will be traveling only 5,600 m.p.h. relative to the earth. That asteroid is Buck Rogers' favorite: Eros...