Discovered: Three planets orbiting younger Sun-like star The planets were discovered in images taken by NASA's Transiting Exoplanet Survey Satellite (TESS) Sunday February 14, 2021 3:00 PM, IANS Washington: An international team of astronomers has discovered a trio of hot worlds larger than Earth orbiting a much younger version of our Sun called TOI 451. The system resides in the recently discovered Pisces-Eridanus stream, a collection of stars less than 3 per cent the age of our solar system that stretches across one-third of the sky. The researchers believe that the newly discovered planetary system, detailed in The Astronomical Journal, will provide researchers with the rare chance to study a group of growing planets.