J. R. Marshall

About

J. R. Marshall is a planetary scientist whose research focuses on Mars and lunar surface exploration, with particular expertise in rover mission simulation, in-situ mineralogical analysis, and environmental assessment for robotic and human exploration. Marshall's most recognized contribution is a comprehensive study of the 1999 Marsokhod rover field simulation at Silver Lake, California, which garnered 33 citations and provided critical insights into rover operations, payload integration, and data transmission protocols that directly informed planning for NASA's Mars Surveyor missions. This work demonstrated the value of terrestrial analog environments — particularly the Mojave Desert — for validating planetary exploration strategies. Marshall also contributed to the development of MICA (Mineral Identification and Composition Analyzer), a compact robotic instrument combining XRF, XRD, and visual imaging for non-destructive in-situ mineralogical analysis on lunar and Martian surfaces. Additionally, Marshall played a role in the Mars Environmental Compatibility Assessment (MECA) project, designed to evaluate soil and dust hazards relevant to future human exploration of Mars. Collectively, these contributions reflect a career dedicated to bridging field geology, instrumentation development, and the practical challenges of planetary surface exploration.

Research Focus

Key Achievements

Top Papers

1. 1
   The 1999 Marsokhod rover mission simulation at Silver Lake, California: Mission overview, data sets, and summary of results

   33 citations · 2001
2. 2
   In-Situ Geologic Analyzer for Lunar and Martian Surfaces

   4 citations · 2008
3. 3
   The MECA Payload as a Dust Analysis Laboratory on the MSP 2001 Lander

   3 citations · 1999
4. 4
   The MSP'01 Mars Environmental Compatibility Assessment (MECA)

   2 citations · 1999

Key Collaborators

Contact & Links