Accelerate progress in our three core enterprises — Explore Worlds, Find Life, and Defend Earth. You can support the entire fund, or designate a core enterprise of your choice.
Transiting Exoplanet Survey Satellite (TESS) The Transiting Exoplanet Survey Satellite (TESS) is a planned space telescope for NASA's Explorers program, designed to search for exoplanets. TESS will survey an area of the sky 400 times larger than that completed by the Kepler mission, focusing on G- and K-type stars to search for smaller exoplanets than previous missions have typically detected. MIT KAVLI Institute for Astrophysics and Space Research