Science: Cosmic Obstacle Race

"Cosmic rays," said Professor H. V. Neher of Caltech, "have for years been regarded as a means of justifying travel to remote areas of the world." Dr. Neher's latest ray-hunting junket was to one of the world's least seductive places, the North Magnetic Pole in barren arctic Canada. Last week he told a Pasadena meeting of the American Physical Society about the results of the trip.

No one knows yet where cosmic ray particles come from. A few may originate in rare solar "flares," but most of them come from farther space. The fastest particles pack an enormous punch, up to...

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