Reuters is just one of several outlets reporting on the discovery of a system with 18 planets along with a few stars that seem to be doing their own thing rather than organizing themselves into a solar system. Typically planets and stars are believed to be formed from a single swirling mass of gas — the planets being formed from planetary-sized masses that partially escape the gravity of the central mass, which eventually becomes a star, but instead end up orbiting the central star from which it was born.
In the system near Orion which these scientists discovered, the gas giant planets don’t orbit any nearby stars. As one of the scientists put it, “The formation of young, free-floating, planetary-mass objects like these is difficult to explain by our current models of how planets form.”