Shocking ‘forbidden planet’ found exterior our photo voltaic system

An artist's illustration shows a large gas giant planet (foreground) orbiting a small red dwarf star called TOI 5205.

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more.


Astronomers have found an unusually large planet orbiting a small star, located about 280 light-years from Earth.

The unexpected size of the newly discovered world, called TOI 5205b, has led researchers to call it the “forbidden planet.”

About the size of Jupiter, it was spotted by researchers using NASA’s Transiting Exoplanet Survey Satellite, or TESS. Jupiter is the largest planet in our solar system.

The planet-hunting mission, launched in 2018, surveys the light of the nearest and brightest stars to spot dips in starlight, which suggests those stars have planets orbiting them. The TESS mission has found thousands of potential planets.