HD 191939 b is a charming exoplanet orbiting the star HD 191939, discovered in 2020 thanks to the keen eyes of the Transiting Exoplanet Survey Satellite (TESS). This distant world makes its presence known by crossing in front of its host star, creating a tiny eclipse that TESS’s sensitive CCD array spotted from space. While it may not have a catchy proper name yet, HD 191939 b is intriguing for scientists eager to study planets beyond our solar system. Its discovery highlights how modern technology allows us to uncover new worlds by catching subtle shadows across the vast cosmic stage. This planet invites us to dream about the diversity of planetary systems that await our exploration.
