Scientists Discover a Lemon-Shaped Planet with a Diamond Core

Astronomers have found a bizarre, lemon-shaped planet called PSR J2322-2650b. Unlike any other known world, it orbits a star with the Sun's mass but compressed into the size of a city. The extreme conditions on this planet have led to some unusual features—including an atmosphere unlike anything seen before. The newly discovered planet sits one hundred times closer to its star than Earth does to the Sun. This proximity exposes it to intense gravitational forces, stretching and warping its shape into something resembling a lemon. The star itself is a dense remnant, packing the mass of the Sun into an area no larger than a typical city.

The planet's atmosphere is equally strange. Instead of the usual mix of gases, it consists of helium and molecular carbon. Dark soot clouds likely drift through this exotic air, creating a hazy, shadowy sky. But the oddities don't stop there. Deep inside PSR J2322-2650b, the extreme pressure could turn carbon into diamonds. Scientists believe these precious stones may form and gather in dense clouds far below the surface. The discovery marks the first time a planet with such an atmosphere has been observed, offering new clues about how extreme environments shape distant worlds.

PSR J2322-2650b stands out as one of the most unusual planets ever found. Its distorted shape, diamond-forming interior, and helium-carbon atmosphere provide rare insights into planetary formation under extreme conditions. Further study could reveal even more about how such worlds evolve in the harshest corners of the universe.