Astronomers using NASA’s Transiting Exoplanet Survey Satellite (TESS) and Spitzer Space Telescope have discovered a planet about the size of Neptune orbiting AU Microscopii, the second closest pre-main-sequence star. An artist’s impression of the planet AU Microscopii b. Image credit: NASA’s Goddard Space Flight Center / Chris Smith, USRA. AU Microscopii (AU Mic), also known as Gliese 803 and HD 197481, is located 31.9 light-years away in the...
