Brown dwarf binary (L4+L4) associated with the G2 V star HD 130948 (Potter et al. 2002). The system has an age of about 800 million years, and at a distance of 18 pc the projected separation between primary and the binary is ∼47 AU (Dupuy et al. 2009). Such systems can form from three identical stellar embryos, where one by chance gains more mass and dynamically banish the other two to the outskirts of the cloud core, where they never gain enough mass to start hydrogen burning. Courtesy Trent Dupuy and Michael Liu.