The Extreme Ultraviolet Explorer has two sets of instruments, which were developed by the University of California at Berkeley's Space Sciences Laboratory under the direction of Dr. Roger Malina and Steve Battel. The first set consists of three scanning telescopes, clustered together and aligned to point in the same direction. These telescopes have carried out the all-sky survey of extreme ultraviolet sources. The second set is the Deep Survey/Spectrometer telescope, which combines a telescope to image very distant sources and a spectrometer to analyze radiation in detail by dispersing the incoming light into individual wavelengths. The Deep Survey/Spectrometer telescope is currently being used by guest investigators from around the world whose scientific proposals are evaluated by peer review panels. The EUVE instruments use detectors, grazing-incidence mirrors, diffraction gratings and spectral filters specially designed and fabricated for this mission. The instrument development program was one of the largest ever undertaken by a university. The EUVE Science Payload (left, top half) mounted atop the Fairchild's Multi-Mission Spacecraft (left, bottom half) launched aboard a Delta Rocket from Cape Canaveral in 1992. On the right, various spacecraft and orbit parameters for EUVE are listed.