NExSS Organizational Structure
The NExSS project is overseen by representatives from NASA headquarters, four co-leads, and a steering committee comprised of the PIs of selected teams. See FAQs for detail information about membership.
PIs and Current Teams
Long-duration, precision stellar photometry from solar observatories in space.
Ralf Kotulla (PI)
Broadband, High-Resolution Frequency Comb Spectroscopy and Multi-Spectral Analysis of Water Vapor and Methane Absorption Up To 1300K For Improved Modeling of Exoplanet Atmospheres.
Greg Rieker (PI)
Back and Forth, Big and Small: Forward and Inverse Models of Super-Earth and Mini-Neptune Exoplanets.
Tyler Robinson (PI)
Breaking the Barrier Between Ice and Rock – New Mass-Radius Relations for Gas Giant, Icy Giant, Mini-Neptune, and Water World Exoplanets.
Sang-Heon (Dan) Shim (PI)
Completing Kepler’s Census: Using Deep Neural Networks to Measure the Frequency of Earth Analogs.
Andrew Vanderburg (PI)
A Suite of Tools for Characterizing Imaged Exoplanets Using High Resolution Spectropolarimetry
Theodora Karalidi (PI)
Adaptation of High Precision Atmospheric Trace Gas Retrieval Technique and Updated Spectroscopy to Model Micro-telluric Features enabling EPRV
Keeyoon Sung (PI)
Chemical Assessment of M-dwarfs and their Rocky Exoplanets to Improve Characterization in the TESS/JWST Era
Natalie Hinkel (PI)
Follow the Volatiles: Tracing Chemical Species Relevant to Habitability from Proto-planetary Disks to Exoplanet Atmospheres
Natalie Batalha (PI)
Hot and Steamy, Cold and Icy, or Temperate and Habitable: Modeling the Early Evolution of Water World Exoplanets
Leslie Rogers (PI)
Probing the Compositions of Multi-planet Transiting Systems with Photodynamics
Eric Agol (PI)
Spectroscopy and Lightcurves of Terrestrial Exoplanet Analogs: Earth and Mars from the EPOXI Discovery Mission
Timothy Livengood (PI)
Studying the Habitable Zones of Nearby Main Sequence Stars with Precision Nulling Interferometry
Steve Ertel (PI)
Third Rock: Finding the Terrestrial Planets Missing from RV Surveys
John Brewer (PI)
Transforming Yields of Direct Imaging Planetary Searches with Young Accelerating Stars
Brendan Bowler (PI)