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Lecture: "The End of Time: The Maya Mystery of 2012"

Astronomers and Stargazers Eyeing a Heliocentric Heaven for Planets, Portents, and Horoscopes

How was "The Tyme Appointed"? Autumn 2005 Colonial Williamsburg; The Journal of the Colonial Williamsburg Foundation. Selected for inclusion in an anthology of journal stories, " A Place by them Called James Towne", to be published in 2007.
Autumn 2005 Colonial Williamsburg; The Journal of the Colonial Williamsburg Foundation

An Astronomer Reads Archeology's Message in Astronomy Magazine, October, 2002

Tiempo , Astronomia, y Ciudades del Mexico Antiguo in ARQUEOLOGIA MEXICANA, vol. 7, 2000

Time, Number & History in the Maya Worldin KRONOS, vol. 1, 2001.

Other Stars than Ours (Named a notable essay in THE BEST AMERICAN SCIENCE & NATURE WRITING OF 2001) in Natural History, April 2001.

Is Harmony at the Heart of Things? (Named a notable essay in THE BEST AMERICAN ESSAYS OF 2001) in The Wilson Quarterly, Winter 2001.

Solving the Mystery of the Nasca Lines
Archaeology Magazine, May/June 2000

The Star of Bethlehem
Archaeology Magazine, November/December 1998

How People Mark Time
Dig Magazine, December 1999/January 2000