NASA's TESS spacecraft discovers a weird system of exoplanets unlike anything seen before

Using NASA's exoplanet-hunting spacecraft TESS (Transiting Exoplanet Survey Satellite) and Antarctic Search for Transiting ExoPlanets (ASTEP) on the Antarctic Plateau, astronomers have discovered a rare and uniquely weird planetary system. The extrasolar planets, or exoplanets , that swirl around the star TOI-201 have orbits that are changing so rapidly that astronomers can see the changes in real time. …