TESS discovers three new planets nearby, including temperate ‘sub-Neptune’

NASA’s Transiting Exoplanet Survey Satellite, or TESS, has discovered three new worlds that are among the smallest, nearest exoplanets known to date. The planets orbit a star just 73 light years away and include a small, rocky super-Earth and two sub-Neptunes — planets about half the size of our own icy giant.