From the BBC:
The study…looked at a number of recently identified planemos (an unofficial term sometimes used to describe planetary mass objects).
Located about 450 light-years away in a star-forming region, four of the objects are just a few million years old, making them cosmic "newborns". They have masses between five and 15 times that of Jupiter.
But unlike Jupiter, these objects are floating through space without an accompanying star.
Infrared emission reveals the planemos are circled by dusty discs, which scientists believe could evolve into planets, comets and asteroids over time, in much the same way our own Solar System's planets are believed to have formed billions of years ago.
Whole thing here.