Word: halley
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Dates: during 2000-2009
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...Editors: We should pause during our excitement over the return of Halley's comet [SCIENCE, Dec. 16] to contemplate the observations the comet could make about us and our planet. Since the Wright brothers' flight in 1903, we have left the earth and visited the moon. We have sent probes to other planets and to the far reaches of our solar system. We have stopped being earthbound and have ventured out to greet the comet. In the next 75 years, will we still be waiting for Halley's comet to come to us, or will we be chasing it? John...
...hope to see Halley's comet the second time around. In 1910 our high school math teacher in my hometown, Nuremberg, Germany, took us to the medieval imperial castle, which overlooks the old city, and here we watched with awe the celestial phenomenon, never to be forgotten. Alfred J. Hopf Madison...
...hope the world is still here the next time Halley's comet comes around. Kristine Haugen Downers Grove, Ill. Challenging Marcos...
...European spacecraft makes some surprising discoveries about the frozen core of Halley's comet, and survives a dusty encounter...
...Giotto spacecraft and Halley's comet raced toward each other last week at a closing speed of 155,000 m.p.h., the tension at the European Space Agency's control center in Darmstadt, West Germany, became palpable. Images of the cornet, relayed to the center at intervals of four seconds, loomed larger and larger on television screens, finally yielding by far the best look yet at an elongated shape near Halley's heart. It was the comet's nucleus. Giotto Investigator Wolfgang Schmidt, giving a play-by-play description of the images, could not contain his excitement. "It's obvious that...