Glossary of Commonly Used Terms and Abbreviations in the 100th Anniversary Debate

biosignature: A biological marker of life. For example, DNA. 
Drake Equation: A simple equation used to estimate the abundance of intelligent and communicative life in our galaxy
exoplanet: A planet orbiting a distant star.
HabEx: Habitable Exoplanet Imaging Mission
IR: InfraredJWST: James Webb Space Telescope
Kepler: Kepler space telescope
LUVOIR: Large UltraViolet Optical Infrared Surveyor
Optical: Visible light that humans can see.
SETI: Search for ExtraTerrestrial Intelligence
technosignature: A technological marker of advanced life. For example, a broadcasted radio signal.
TESS: Transiting Exoplanet Survey Satellite
UV: UltraViolet
WFIRST: Wide Field Infrared Survey Telescope