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Mission of Opportunity (MO)

An investigation that forms part of a non-NASA space mission of any size and has a total NASA cost of under $35 million. Missions of Opportunity are conducted on a no-exchange-of-funds basis with the organization sponsoring the mission. NASA solicits proposals for MOs with each Announcement of Opportunity (AO) issued for UnEX (University-class Explorere), SMEX (Small Explorer), and MIDEX (Medium-class Explorer) investigations. Examples include HETE-2, TWINS,and CINDI.

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