Earth Surface & Interior

NASA’s Earth Surface and Interior focus area (ESI) supports research and analysis of solid-Earth processes and properties from crust to core. The overarching goal of ESI is to use NASA’s unique capabilities and observational resources to better understand core, mantle, and lithospheric structure and dynamics, and interactions between these processes and Earth’s fluid envelopes.

ESI studies provide the basic understanding and data products needed to inform the assessment, mitigation, and forecasting of the natural hazards, including phenomena such as earthquakes, tsunamis, landslides, and volcanic eruptions. These investigations also exploit the time-variable signals associated with other natural and anthropogenic perturbations to the Earth system, including those associated with the production and management of natural resources.


Research Questions

Earth Surface & Interior addresses the following overarching questions, identified in the NASA Challenges and Opportunities for Research in ESI (CORE) Report (2016):

  1. What is the nature of deformation associated with plate boundaries and what are the implications for earthquakes, tsunamis, and other related natural hazards?
  2. How do tectonic processes and climate variability interact to shape Earth’s surface and create natural hazards?
  3. How does the solid Earth respond to climate-driven exchange of water among Earth systems and what are the implications for sea-level change?
  4. How do magmatic systems evolve, under what conditions do volcanoes erupt, and how do eruptions and volcano hazards develop?
  5. What are the dynamics of Earth’s deep interior and how does Earth’s surface respond?
  6. What are the dynamics of Earth’s magnetic field and its interactions with the rest of Earth’s systems?
  7. How do human activities impact and interact with Earth’s surface and interior?


Thumbnail of CORE Report cover page

The CORE Report synthesizes the discussions from the NASA CORE Workshop, held 2-3 November 2015 in Arlington, VA. The purpose of the workshop was to convene the community to assess progress towards meeting the goals of the 2002 Solid Earth Science Working Group (SESWG) report Living on a Restless Planet, and to revisit challenges and opportunities for NASA solid-Earth science in light of scientific progress and new capabilities realized over the past decade. Additional input reflected in the report was acquired through pre-workshop white papers, a 2015 Fall AGU Town Hall Meeting, a public comment period, and peer reviews.

Space Geodesy Program (SGP)

The Space Geodesy Program (SGP) was initiated in 2011 with the long-range goal of building, deploying, and operating a next generation NASA Space Geodetic Network (NSGN) of integrated, multi-technique space geodetic observing systems. This infrastructure enables the establishment and maintenance of a precise terrestrial reference frame that is foundational to many Earth missions and location-based observations. SGP produces observations that refine our knowledge of Earth’s shape, rotation, orientation, and gravity, advancing our understanding of the motion and rotation of tectonic plates, elastic properties of the crust and mantle, mantle-core interactions, solid Earth tides, and the effects of surface loading resulting from surface water, ground water, glaciers, and ice sheets. SGP is a partnership between Goddard Space Flight Center and the Jet Propulsion Laboratory, with participation from the Smithsonian Astrophysical Observatory and the University of Maryland. The latest news on the Space Geodesy Project can be found here.

Associated Earth Science Division Missions, Instruments, and Data Sets

The table below lists all Earth missions that are relevant to the Earth Surface and Interior Focus Area in all phases. Learn more about the mission phases: operating, under development, under study, and past.

Satellite Missions Jason-3
LAGEOS 1 & 2
Landsat 7
LDCM/ Landsat 8
GRACE Follow-On
Suborbital Investigations:
Ground-based Observations
Space Geodesy Project (SGP)
Suborbital Investigations:
Aircraft Missions
Satellite Missions ICESat-2
Satellite Missions CHAMP


ROSES Solicitations

Solicited program elements relevant to Earth Surface & Interior are publicized through Research Opportunities in Space and Earth Sciences (ROSES) NASA Research Announcements (NRAs) on the NASA Solicitation and Proposal Integrated Review and Evaluation System (NSPIRES) website.  Past, open, and future solicitations can be searched and viewed at NSPIRES.

Listed below are ESI-relevant past (including funded project abstracts when available), open, and future solicitations:


Research Resources

Distributed Active Archive Centers (DAACs)

Alaska Satellite Facility (ASF)

  • Distributes synthetic aperture radar imagery and products

Crustal Dynamics Data Information System (CDDIS)

  • Distributes global geodetic data

Earth Resource Observation and Science Center (EROS)

  • Distributes imagery and products from NASA’s Earth Observing System.


Relevant Sites

Topics relevant to Earth Surface & Interior are also being pursued through the following:

NASA Applied Sciences Programs
NASA Center Organizations
Interagency/International Activities


Program Managers

Benjamin Phillips
Earth Surface & Interior Program
Space Geodesy Program

Gerald Bawden
Earth Surface & Interior Program
Water & Energy Cycle Program
Terrestrial Hydrology Program