11.   Brown dwarfs and their disks, he said, represented only a tiny fraction of the mass of the observed star cluster.

12.   But he said that at the distance of the brown dwarf, more than a dozen light-years into deep space, those emissions could never be picked up.

13.   But he suggested that gravitational instabilities might have made it difficult for a brown dwarf to emerge as close to a true star as in this case.

14.   But several are so massive that they are suspected of having starlike origins and thus being brown dwarfs.

15.   But what are these brown dwarfs?

16.   Compared with normal stars and their steady brightness, brown dwarfs are dim and getting dimmer.

17.   Debate continues over whether some or all of these objects are true planets or brown dwarfs.

18.   Either they are wrong or scientists may have to assume that the whopper could be a dim failed star known as a brown dwarf.

19.   He said the cooler cores of brown dwarfs, like a pot of soup on a low flame, might create less turbulence inside the dwarfs.

20.   He suggested that while many brown dwarfs probably originated like stars, others might form by another mechanism.