It was astronomy week in Washington, but the astronomers who reported to the American Physical Society and the National Academy of Sciences seemed to be losing ground. For each problem that they solve, they have discovered a new mystery. One of the most intriguing of the new sky puzzles, Radio Astronomers Alex Smith and Thomas Carr of the University of Florida told the Physical Society, is posed by a brief question: What's happening on Jupiter? Radio signals that once came from the distant planet in regularly spaced bursts are now being received at 1.3-sec. longer intervals. "This is almost...
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