Non-Fiction

Journey Planet

• "A Riddle, Wrapped in a Mystery, Inside an Enigma: The National Cryptologic Museum" in Journey Planet 90's Museums, edited by Chris Garcia, James Bacon, and Steven H Silver, May 2025
• "Anderson Planet: Thunderbirds, Captain Scarlet and the Mysterons, and UFO" in Journey Planet 58's Cancelled Too Soon, edited by James Bacon, Evan Reeves, Steven H Silver, and Chris Garcia, November 2021.
• "Mongolia, Land of the Eternal Blue Sky: Sand, Steppe, and Shamans" in Journey Planet 51's Magical Places, edited by Chris Garcia, James Bacon, and Steven H. Silver, August 2020.

Turning Points

• "Turning Points: The Mongol Horde" (column), in Galaxy's Edge, Issue 62, May 2023
• "Turning Points: Rome Falls" (column), in Galaxy's Edge, Issue 61, March 2023
• "Turning Points: X-ray Lasers" (column), in Galaxy's Edge, Issue 60, January 2023
• "Turning Points: The Antikythera Mechanism" (column), in Galaxy's Edge, Issue 59, November 2022
• "Turning Points: The Chicxulub Impact" (column), in Galaxy's Edge, Issue 58, September 2022
• "Turning Points: Earthrise" (column), in Galaxy's Edge, Issue 57, July 2022

Lightspeed

• "Planetary Alchemy", in Lightspeed, Issue 18, November 2011
• "Armageddon Rock", in Lightspeed, Issue 19, December 2011