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MMX Neutron and Gamma-Ray Spectrometer Investigation AO

An opportunity for a Discovery Program Focused Mission of Opportunity Martian Moons eXploration (MMX) Neutron and Gamma-Ray Spectrometer Investigation ( has been released as PEA-I of the SALMON-3 AO (NNH17ZDA004O)

Notice of Intent to Propose:

April 28, 2017

Proposals Due:

June 20, 2017

A Pre-proposal Conference will be held on April 17, 2017, via Webex; see for information page for exact date, time, agenda, and logistical information.

Direct questions specifically regarding PEA-I to: Thomas Statler at (subject line to read "MMX AO").

Questions concerning the SALMON-3 AO may be addressed to Jeffrey Newmark at