The Transiting Exoplanet Survey Satellite (TESS) is a NASA space mission launched in April 2018 designed to search for exoplanets, particularly those that transit their host stars. By monitoring the brightness of over 200,000 stars in the southern sky, TESS aims to identify periodic dimming caused by planets passing in front of their stars, providing critical data for understanding planetary systems and the potential for life beyond Earth.
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