Using the Transiting Exoplanet Survey Satellite (TESS), an international team of astronomers has detected a new old and warm Jupiter-like alien world orbiting a G-dwarf star. The newfound exoplanet, designated TOI-5542 b, is the size of Jupiter—about 30% more massive than the solar system's biggest gas giant. The finding is reported in a paper published September 29 on the arXiv pre-print server.