What is Defense Support Program?
[[Image:DSP Phase3.jpg|thumb|right|260px|Painting of a DSP satellite.]] The '''Defense Support Program''' (DSP) is a group of [[satellite (artificial)|satellite]]s that [[orbit]] the [[Earth]]. They are owned by the [[United States Air Force]] to run the ''Satellite Early Warning System'' used by the [[United States]]. DSP satellites are used to detect [[missile]] and [[spacecraft]] launches. DSP is also used to detect [[nuclear weapon|nuclear]] [[explosion]]s. It does this by using [[infrared]] [[sensor]]s on the satellite. {{tech-stub}} [[Category:American satellites]] [[Category:United States Air Force]]