The 'orphaned' planets in the universe

Many planets roam the universe without flying around or around any parent star.

Scientists found that some planets roam the universe at a rate of 48 million km / h without orbiting any star. Many people call them "orphan" planets without their mother stars, or flee their mother star after forming, according to How Stuff Works.

Many planets exist in the universe without flying around any star.(Photo: Rakuten).

Usually, stars and planets have the same origin from a large cloud of gas and dust. When the cloud accumulates, its central part forms a hot star. The outer disk of gas forms planets that fly around the star in the middle.

The phenomenon of "orphaned planet" occurs when a binary star system flies too close to the black hole. A star is destroyed by a black hole while the other star is ejected with tremendous speed. Planets flying around a star near a black hole were also shot into space and left their original orbit.

According to research by scientists at the University of Chicago, USA, an "orphaned" planet that is 3-4 times the size of Earth may have enough heat to keep water in liquid form below the surface. ice is several kilometers thick. This ocean can last for billions of years, potentially converging to qualify for microbial life.