New Mini-Neptune Exoplanet Discovered Orbiting Nearby Star

Astronomers have discovered a new mini-Neptune exoplanet, TOI-4438 b, orbiting a nearby star. This planet, about 2.5 times larger than Earth, was found using NASA’s TESS satellite. With a high water mass fraction and a volatile-rich composition, TOI-4438 b is a promising target for atmospheric characterization with the James Webb Space Telescope.