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No. 98: Mar-Apr 1995

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Carbon-14 dating: under a cloud?

An item in Science News about the earth's envelopment by a cloud of interstellar gas 2,000-8.000 years ago impelled J.M. Rankin to inquire if this cloud could change the cosmic-ray flux enough to affect carbon-14 dating. The answer seems to be YES. Unfortunately, we do not yet know enough to make corrections for this gastroastronomical event.

(Rankin, John M., and Frisch, Priscilla C.; "Carbon-14 Dating: Under a Cloud?" Science News, 147:51, 1995.)

Cross reference. See item under ASTRONOMY in this issue for more on this cloud.

From Science Frontiers #98, MAR-APR 1995. � 1995-2000 William R. Corliss