207 



U.S.A. 



VIKING I AND 2 (ORBITER I AND 2) 



Jet Propulsion (VIKINGS) and Langley (ORBITERS) 



NASA 



"Big Science" Descriptor ; Space: lunar and planetary probes 



Description of Facility/Instrument : Both VIKING landers soft landed on 

 Mars, searched for life, and analyzed soil and measured meteorology 

 near the surface. The ORBITERS Imaged the surface, mapped Mars, and 

 determined atmospheric structure and composition. 



Date of Construction : 1975 (launches) 



Construction Cost : 1984 $$ : $950 million 



Present International Cooperation 



Nationality(s) of Ownership ; U.S. 

 Nationality(s) of Operational Funding : U.S. 

 Natlonallty(s) of Management Staff : U.S. 

 Natlonallty(8) of Researchers : U.S. 



This mission Included French and Swedish Instrumentation. 



Other Information : 



Launched 



VIKING 1 and ORBITER 1: August 20, 1975 

 VIKING 2 and ORBITER 2: September 9, 1975 



