Astronomers have spotted a giant exoplanet, named TOI-6894b, that’s bigger than Saturn and circling a red dwarf star only one-fifth the mass of the Sun.
This finding rewrites expectations about where massive planets can form and hints that such worlds may be common around the smallest stars. The discovery emerged from a survey of Transiting Exoplanet Survey Satellite (TESS) data.
TOI-6894 is a cool red dwarf that shines with far less light than the Sun. Yet its companion, TOI-6894b, is a puffed-up gas world whose radius exceeds Saturn’s while its mass is only half as large.
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