The April 25, 1999, issue of JGR-Planets was named the Best Single Issue in Science/Technology/Medicine by the Professional/Scholarly Publishing Division of the Association of American Publishers. The award was presented at the Division's annual meeting in February in Washington, D.C.

Featured was a special section on the Mars Pathfinder. The mission resulted in a significant volume of data in several areas, and the papers in the issue were the first detailed treatment of the mission in the literature. JGR-Planets competed against commercial publishers, including Blackwell's and Elsevier, university presses, including Cambridge University Press and MIT Press, as well as associations, including the American Chemical Society and the American Association for the Advancement of Science.