Ambrose Wong's grandfather also discovered the extensive cave system running under the surface and named the purple light emanating from the cave system "Peking Purple".
In 2372, the Myhr'an destroyed Starbase Expanse 4, leaving a 90 kilometer wide crater on the surface and intense storms as an aftereffect. The blast killed nearly everyone on the surface. The USS Cantabrian (NCC-24705) evacuated the survivors, including Dakota Caldwell, Yh'ahni and Ambrose Wong. (Star Trek: The Cantabrian Expeditions: "Catalyst, Part One")