Neptune-sized Planet Found Around a Baby Star 32 Light-years Away

Astronomers using NASA’s Transiting Exoplanet Survey Satellite (TESS) and data from the now-retired Spitzer Space Telescope¬† have announced the discovery of a Neptune-sized exoplanet orbiting AU Microscopii (AU Mic for short), a red M-dwarf star 31.93 light-years away and only about 20 to 30 million years old. The star is so young that it’s still…