IFL Science
By Dr. Alfredo Carpineti
April 6, 2026
Exoplanet TOI-5205 b has been a head-scratcher since its discovery. It is just over the size of Jupiter and orbits a red dwarf star with a radius only about 4 times as big as its own. How this unusual configuration came to be remains uncertain, and new observations have only added to its peculiarities.
The “forbidden” planet itself is just a tad heavier than Jupiter. Its star is a mere 375 times heavier than that, meaning the planet has about 0.3 percent the mass of its star, the highest among all known planets orbiting red dwarfs.
Super Sleuth
