An anonymous reader writes "Kepler may be down, but now NASA has another planet-hunting tool in mind. The space agency is preparing the Transiting Exoplanet Survey Satellite (TESS) observatory in order to follow in Kepler's footsteps. NASA has been searching for alien planets for several years now. Learning about strange exoplanets such as enormous, hot 'Jupiters' and 'rogue planets' that actually cruise through space without a parent star certainly adds to the body of research concerning our universe. Yet what scientists are really interested in are the Earth-like planets that may hold the potential for life."