February 2020 Issue
Feature Articles
TESS: The Little Satellite with a Big Job
The Transiting Exoplanet Survey Satellite is surveying the solar neighborhood for Earth-like exoplanets—and reaping a data harvest with potential impact far beyond the search for life.
by Valerie C. CoffeyLight Sailing into the Great Beyond
Powering spacecraft by radiation pressure from solar or laser light, once the province of science fiction, is becoming increasingly practical with advances in photonic technology and the space economy.
by Grover Swartzlander, Les Johnson and Bruce BettsCongratulations to the 94 members of the 2020 class of OSA Fellow Members, who will be recognized at OSA conferences throughout the year for scientific, engineering and technological contributions, as well as industry leadership and service to OSA and the global optics community.
by Meredith Smith, Kari Apter and Samantha HornbackDepartments and Columns
Also in this Issue
30, 20, and 10 Years Ago in OPN
Quantum well modulators; environmental scanning electon microscope; promoting LED use.
OPTIC 2019 in Taiwan / IONS KOALA / Hagan named CREOL interim dean / NAI fellows / Honors for Vuckovic and Forbes / OSA Fellow stories / A.E. Kaplan mourned / Thank you, editors and volunteers

![Manual probe system with needles for test of semiconductor on silicon wafer. [A. Morozov / Getty]](https://opnmedia.blob.core.windows.net/$web/opn/media/images/articles/2025/1125/departments/202511-cover-web.jpg?ext=.jpg)
![Researcher Clara Saraceno in the lab. [Image by Carsten Behler Photography]](https://opnmedia.blob.core.windows.net/$web/opn/media/images/articles/2025/1025/departments/202510-cover-web.jpg?ext=.jpg)