Ravi Kopparapu is a researcher at NASA Goddard Space Flight Center working on exoplanet habitability and biosignatures. He is the author of arXiv:2605.16674 (May 2026), arguing that the first remotely detected exoplanet biosignature will reflect observational selection effects rather than the most common type of inhabited world. His work on k2-18b-type sub-Neptune detection bias (detectability advantage ~32× over Earth analogs) has implications for interpreting JWST and HWO results.