TABLE 9.1 Key Findings and Recommendations from Chapters 4 Through 8

Chapter 4 The Primitive Bodies Chapter 5 The Inner Planets Chapter 6 Mars Chapter 7 The Giant Planets Chapter 8 Satellites
Flagship mission Not proposed; use limited resources to initiate technology program to ensure that cryogenic comet sample return can be carried out in the 2020s. Top and only priority is the Venus Climate Mission. Initiate the Mars Sample Return campaign.
First and highest-priority element is Mars Astrobiology Explorer-Cacher.
Top and only priority for a new flagship mission is the Uranus Orbiter and Probe.
Jupiter Europa Orbiter should:
—Maintain Jupiter system science as high priority
—Designate Jupiter system science as top-ranked priority during approach and early tour phases
—Incorporate Jupiter system science specific needs into jovian tour design.
Continue Cassini mission.
Highest-priority new missions in priority order:
1. Jupiter Europa Orbiter component of Europa Jupiter System Mission (EJSM)
2. Titan flagship mission
3. Enceladus Orbiter.
New Frontiers missions Raise the cost cap.
Goals in priority order:
1. Comet Surface Sample Return
2. Trojan Tour and Rendezvous.
Regular cadence is highly desirable.
Goals in priority order:
1. Venus In Situ Explorer
2. South Pole-Aitken Basin Sample Return
3. Lunar Geophysical Network.
Neither Mars Geophysical Network nor Mars Polar Climate missions is recommended at this time. Current cost cap is insufficient to permit many of the highest-interest missions.
Only possible current mission is Saturn Probe.
Io Observer is a higher priority than Ganymede Orbiter.
Discovery mission Ensure an appropriate cadence of future Discovery missions. Ensure a regular cadence of future Discovery missions. Small spacecraft missions can make important contributions to the study of Mars. Allow proposals for targeted and facility-class orbital space telescopes in Discovery program.
International cooperation Continue support via participating scientist programs and Missions of Opportunity. MSR could proceed as a NASA-only program, but international collaboration is needed to make real progress; Mars Trace Gas Orbiter is an appropriate start. Encourage continued collaboration between NASA, ESA, and JAXA to enable the implementation of all three components of EJSM.

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