71.   Osorio said the objects she found may be smaller versions of the brown dwarf and their faint light comes only from the heat of formation.

72.   Should Earth-size planets orbit brown dwarfs, they are likely cold, dark and inhospitable to life.

73.   Still, even among brown dwarfs, the five new objects are unusually cool.

74.   The new discovery orbits closer to its parent star than any other brown dwarf yet discovered, said Liu.

75.   Thus, if lithium is detected, a faint object may be a brown dwarf.

76.   Too massive to be planets and too cold to be stars, five brown dwarfs are finally earning some cosmic respect.

77.   Brown dwarfs are formed from the same material as the stars, but are much smaller -- about one-twelfth of the mass of our sun.