A giant conundrum has been found orbiting a teeny tiny red dwarf star just a fifth of the size of the Sun.

Such small stars were thought to be incapable of producing giant planets. But there, in its orbit, appears to be unmistakable evidence of an absolute unit: a gas giant around the size of Saturn .

TOI-6894b, as the exoplanet is named, has 86 percent of the radius of Jupiter . At just 23 percent of the radius and 21 percent of the mass of the Sun, its parent TOI-6894 is the smallest star yet around which a giant world has been found.

"I was very excited by this discovery," says astrophysicist Edward Bryant of the University of Warwick in the UK, who led the large international research team.

"We did not expect planets like TOI-6894b to be able to form around stars this low-mas

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