Inset: an image taken in infrared light shows some of the globulettes in the study (marked with rings).
Background image: Part of the Rosette Nebula.
Credit: Canada-France-Hawaii Telescope / 2003 and ESO/M. Mäkelä.
It's highly unlikely that any of these rogue planets would harbor life. You can't get much further from the habitable zone than by zooming around in empty space. Still, the science fiction lover in me thinks a civilization on a star-less planet would make a pretty cool story.
Gösta F. Gahm, Carina M. Persson, Minja M. Mäkelä, & Lauri K. Haikala (2013). Mass and motion of globulettes in the Rosette Nebula Astronomy & Astrophysics arXiv: 1305.2485v2.