“As you can see, nothing much. There was a pointing glitch—at least that’s what it looked like—in forty-nine,” he said, waving vaguely toward the window. “The quasar bunch freed up the one-tens and one-twenties about an hour ago. They seem to be getting very good data.” “Yeah, I heard. They don’t understand . . .” His voice trailed off as an alarm light flashed decorously on the console in front of them. On a display marked “Intensity vs. Frequency” a sharp vertical spike was rising. “Hey, look, it’s a monochromatic signal.” Another display, labeled “Intensity vs. Time,” showed a set of pulses
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