The Empty Quarter - ar-Rub' al-Khali is just one transliteration - exerts a strange draw on any who have been near it or spent time in it. One of these is research scientist Jeff Wynn of the US Geological Survey, who lived with his family in Jeddah, Saudi Arabia, for four years. When he was invited by the Zahid Corporation to participate as the expedition scientist, he knew it was a truly rare opportunity - as the Expedition List shows.
Wynn participated in the May 1994, December 1994, and March 1995 Zahid Expeditions, and has published a number of scientific articles on the geologic observations and geophysical measurements made during those trips (see link under Expeditions List).
Wynn established the initial Empty Quarter website in 1996 (see Link section) and this site is an outgrowth of that.
This site also mirrors http://www.empty-quarter-expeditions.info
The photo above, taken by Bill Chasteen, shows Wynn using a Cesium-Vapor Magnetometer to survey the ejecta field of the Wabar asteroid impact site, located approximately in the geographic center of the Empty Quarter.