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Asteroids get solar push toward Earth

A subtle, often overlooked, nongravitational effect may play a key role in kicking asteroids out of their main belt and into the inner solar system.

References:

Farinella, P., and D. Vokrouhlicky. 1999. Semimajor axis mobility of asteroidal fragments. Science 283(March 5):1507.

Sources:

Joseph A. Burns
Cornell University
328 Space Sciences Building
Ithaca, NY 14853-6801

Paola Farinella
University of Trieste
Dipartimento di Astronomia
Via Tiepolo 11
I-34131 Trieste
Italy

David Vokrouhlicky
Charles University
Institute of Astronomy
V Holesovickách 2
CZ-18000 Prague 8
Czech Republic

From Science News, Vol. 155, No. 10, March 6, 1999, p. 151. Copyright © 1999, Science Service.

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