ICAR - Alternative Earths – How to Build and Sustain a Detectable Biosphere
All applications must be submitted in Zintellect
Please visit the NASA Postdoctoral Program website for application instructions and requirements: How to Apply | NASA Postdoctoral Program (orau.org)
A complete application to the NASA Postdoctoral Program includes:
- Research proposal
- Three letters of recommendation
- Official doctoral transcript documents
About the NASA Postdoctoral Program
The NASA Postdoctoral Program (NPP) offers unique research opportunities to highly-talented scientists to engage in ongoing NASA research projects at a NASA Center, NASA Headquarters, or at a NASA-affiliated research institute. These one- to three-year fellowships are competitive and are designed to advance NASA’s missions in space science, Earth science, aeronautics, space operations, exploration systems, and astrobiology.
Description:
Our research is defined by one fundamental question: How do ocean chemistry and solid planetary processes lead to sustained habitability and the maintenance of detectable atmospheric biosignatures? Our search requires a comprehensive mechanistic understanding of Earth’s past and is producing, by extension, a framework for interpreting remote observations of exoplanets. We are viewing the stages of our planet’s history over its initial four billion years as ‘alternative Earths.’ These chapters provide unique windows onto the evolution of our own planet — as well as the factors that, more generally, regulate the evolution of planetary habitability and the appearance, persistence, and detectability of atmospheric biosignatures on habitable worlds. These efforts build on our previous results but go much further by: (1) employing exciting new and wide-ranging geochemical and numerical approaches to deconstructing Earth’s past, including extensive calibration of proxy approaches in modern analogs of ancient oceans, and (2) extending our understanding of Earth system dynamics to exoplanet observables.
We have constructed an interdisciplinary team with broad expertise across Earth system science, marine biogeochemistry, microbial ecology, climate modeling, and observational astronomy. The highly interdisciplinary nature of our team allows for a novel vertical integration of approaches: cutting-edge geochemical proxies; 3-D models for ocean biogeochemistry that will yield gas fluxes to simulated atmospheres; coupled climate and photochemical models to predict steady-state atmospheric compositions and their synthetic spectra generated by radiative transfer models; and finally exploration of remote detectability using instrument simulators, thereby solidifying our connection to ongoing NASA missions and future mission concepts.
Applicants who apply for this research opportunity and are subsequently selected for an NPP award are expected to attend the Astrobiology Graduate Conference (AbGradCon) and/or the Astrobiology Science Conference (AbSciCon) using the travel funds that are conferred as part of the NPP award.
Field of Science: Astrobiology
Advisors:
Tim Lyons
timothy.lyons@ucr.edu
951-321-0813
Chris Reinhard
chris.reinhard@eas.gatech.edu
404-385-0670
Noah Planavsky
noah.planavsky@yale.edu
203-432-9043
Stephanie Olson
stephanieolson@purdue.edu
651-207-9618
Mary Parenteau
Mary.N.Parenteau@nasa.gov
503-816-2482
Tina Treude
ttreude@g.ucla.edu
310-267-5213
Edward Schwieterman
edward.schwieterman@ucr.edu
321-505-1605
Maryjo Brounce
mbrounce@ucr.edu
951-827-3151
Jennifer Glass
jennifer.glass@eas.gatech.edu
404-894-3942
Stephen Kane
skane@ucr.edu
626-421-9054
Jun Korenaga
jun.korenaga@yale.edu
203-432-7381
Gordon Love
glove@ucr.edu
951-827-3181
Andy Ridgwell
andy@seao2.org
951-827-3186
Eligibility is currently open to:
- U.S. Citizens;
- U.S. Lawful Permanent Residents (LPR);
- Foreign Nationals eligible for an Exchange Visitor J-1 visa status; and,
- Applicants for LPR, asylees, or refugees in the U.S. at the time of application with 1) a valid EAD card and 2) I-485 or I-589 forms in pending status
Questions about this opportunity? Please email npp@orau.org
- Degree: Doctoral Degree.
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