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Ideas, Inventions And Innovations A Temperate, Neptune-Sized Planet Discovered An international group of collaborators, including scientists from NASA s Jet Propulsion Laboratory and The University of New Mexico, have discovered a new, temperate sub-Neptune sized exoplanet with a 24-day orbital period orbiting a nearby M dwarf star. The recent discovery offers exciting research opportunities thanks to the planet s substantial atmosphere, small star, and how fast the system is moving away from the Earth. An artist s impression shows an exoplanet orbiting the Sun-like star.  Credit: ESO/M. Kornmesser The research, titled TOI-1231 b: A Temperate, Neptune-Sized Planet Transiting the Nearby M3 Dwarf NLTT 24399, will be published in a future issue of The Astronomical Journal. The exoplanet, TOI-1231 b, was detected using photometric data from the Transiting Exoplanet Survey Satellite (TESS) and followed up with observations using the Planet Finder Spectrograph (PFS) on the Magellan

Milky wayMagallanesy antáica chilenaDiana dragomirJennifer burtSteve carrPropulsion laboratoryKavli instituteUniversity of new mexicoDepartment of physicsScience processing operations centerExoplanet survey satelliteNew mexicoNeptune sized planet transitingTransiting exoplanet survey satellitePlanet finder spectrographMagellan clay