Brown Dwarves are Bashful

At the 213th meeting of the American Astronomical Society, Sergio Dieterich of Georgia State University in Atlanta that based on a study of 233 nearby multiple-star systems by NASA’s Hubble Space Telescope, Brown Dwarfs (objects that are too small to fuse hydrogen, but are bigger than planets) tend not to form binary pairs with ‘normal’ (hydrogen-fusing) stars.

See the press release at the HubbleSite.