TOI-421 b is an intriguing exoplanet discovered in 2020 orbiting the star TOI-421, catching the eye of astronomers using the space-based Transiting Exoplanet Survey Satellite (TESS). This planet was spotted as it gently passed in front of its host star, causing a tiny dip in brightness detectable by TESS’s keen CCD array. While it may not have a fancy proper name yet, TOI-421 b’s discovery showcases the exciting power of modern space telescopes hunting for worlds beyond our solar system. Though details about its exact size or atmosphere are still unfolding, TOI-421 b adds to the growing list of captivating planets that remind us how diverse and dynamic the galaxy truly is!
